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10\left(y-4\right)\times 7\left(x-5\right)+8\times 9\times 7\left(x-9\right)=5\left(x-5\right)
Variable x cannot be equal to 5 since division by zero is not defined. Multiply both sides of the equation by 7\left(x-5\right), the least common multiple of x-5,7.
70\left(y-4\right)\left(x-5\right)+8\times 9\times 7\left(x-9\right)=5\left(x-5\right)
Multiply 10 and 7 to get 70.
\left(70y-280\right)\left(x-5\right)+8\times 9\times 7\left(x-9\right)=5\left(x-5\right)
Use the distributive property to multiply 70 by y-4.
70yx-350y-280x+1400+8\times 9\times 7\left(x-9\right)=5\left(x-5\right)
Use the distributive property to multiply 70y-280 by x-5.
70yx-350y-280x+1400+72\times 7\left(x-9\right)=5\left(x-5\right)
Multiply 8 and 9 to get 72.
70yx-350y-280x+1400+504\left(x-9\right)=5\left(x-5\right)
Multiply 72 and 7 to get 504.
70yx-350y-280x+1400+504x-4536=5\left(x-5\right)
Use the distributive property to multiply 504 by x-9.
70yx-350y+224x+1400-4536=5\left(x-5\right)
Combine -280x and 504x to get 224x.
70yx-350y+224x-3136=5\left(x-5\right)
Subtract 4536 from 1400 to get -3136.
70yx-350y+224x-3136=5x-25
Use the distributive property to multiply 5 by x-5.
70yx-350y+224x-3136-5x=-25
Subtract 5x from both sides.
70yx-350y+219x-3136=-25
Combine 224x and -5x to get 219x.
70yx+219x-3136=-25+350y
Add 350y to both sides.
70yx+219x=-25+350y+3136
Add 3136 to both sides.
70yx+219x=3111+350y
Add -25 and 3136 to get 3111.
\left(70y+219\right)x=3111+350y
Combine all terms containing x.
\left(70y+219\right)x=350y+3111
The equation is in standard form.
\frac{\left(70y+219\right)x}{70y+219}=\frac{350y+3111}{70y+219}
Divide both sides by 70y+219.
x=\frac{350y+3111}{70y+219}
Dividing by 70y+219 undoes the multiplication by 70y+219.
x=\frac{350y+3111}{70y+219}\text{, }x\neq 5
Variable x cannot be equal to 5.
10\left(y-4\right)\times 7\left(x-5\right)+8\times 9\times 7\left(x-9\right)=5\left(x-5\right)
Multiply both sides of the equation by 7\left(x-5\right), the least common multiple of x-5,7.
70\left(y-4\right)\left(x-5\right)+8\times 9\times 7\left(x-9\right)=5\left(x-5\right)
Multiply 10 and 7 to get 70.
\left(70y-280\right)\left(x-5\right)+8\times 9\times 7\left(x-9\right)=5\left(x-5\right)
Use the distributive property to multiply 70 by y-4.
70yx-350y-280x+1400+8\times 9\times 7\left(x-9\right)=5\left(x-5\right)
Use the distributive property to multiply 70y-280 by x-5.
70yx-350y-280x+1400+72\times 7\left(x-9\right)=5\left(x-5\right)
Multiply 8 and 9 to get 72.
70yx-350y-280x+1400+504\left(x-9\right)=5\left(x-5\right)
Multiply 72 and 7 to get 504.
70yx-350y-280x+1400+504x-4536=5\left(x-5\right)
Use the distributive property to multiply 504 by x-9.
70yx-350y+224x+1400-4536=5\left(x-5\right)
Combine -280x and 504x to get 224x.
70yx-350y+224x-3136=5\left(x-5\right)
Subtract 4536 from 1400 to get -3136.
70yx-350y+224x-3136=5x-25
Use the distributive property to multiply 5 by x-5.
70yx-350y-3136=5x-25-224x
Subtract 224x from both sides.
70yx-350y-3136=-219x-25
Combine 5x and -224x to get -219x.
70yx-350y=-219x-25+3136
Add 3136 to both sides.
70yx-350y=-219x+3111
Add -25 and 3136 to get 3111.
\left(70x-350\right)y=-219x+3111
Combine all terms containing y.
\left(70x-350\right)y=3111-219x
The equation is in standard form.
\frac{\left(70x-350\right)y}{70x-350}=\frac{3111-219x}{70x-350}
Divide both sides by 70x-350.
y=\frac{3111-219x}{70x-350}
Dividing by 70x-350 undoes the multiplication by 70x-350.
y=\frac{3\left(1037-73x\right)}{70\left(x-5\right)}
Divide -219x+3111 by 70x-350.