Solve for x
x=-9
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10\left(5x-7\right)-8\left(9x-4\right)=80-5\left(3x+11\right)
Multiply both sides of the equation by 40, the least common multiple of 4,5,8.
50x-70-8\left(9x-4\right)=80-5\left(3x+11\right)
Use the distributive property to multiply 10 by 5x-7.
50x-70-72x+32=80-5\left(3x+11\right)
Use the distributive property to multiply -8 by 9x-4.
-22x-70+32=80-5\left(3x+11\right)
Combine 50x and -72x to get -22x.
-22x-38=80-5\left(3x+11\right)
Add -70 and 32 to get -38.
-22x-38=80-15x-55
Use the distributive property to multiply -5 by 3x+11.
-22x-38=25-15x
Subtract 55 from 80 to get 25.
-22x-38+15x=25
Add 15x to both sides.
-7x-38=25
Combine -22x and 15x to get -7x.
-7x=25+38
Add 38 to both sides.
-7x=63
Add 25 and 38 to get 63.
x=\frac{63}{-7}
Divide both sides by -7.
x=-9
Divide 63 by -7 to get -9.
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y = 3x + 4
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Simultaneous equation
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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