Solve for x
x = -\frac{11}{7} = -1\frac{4}{7} \approx -1.571428571
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2\times 4\left(x-7\right)=3\times 5\left(x-3\right)
Multiply both sides of the equation by 18, the least common multiple of 9,6.
8\left(x-7\right)=3\times 5\left(x-3\right)
Multiply 2 and 4 to get 8.
8x-56=3\times 5\left(x-3\right)
Use the distributive property to multiply 8 by x-7.
8x-56=15\left(x-3\right)
Multiply 3 and 5 to get 15.
8x-56=15x-45
Use the distributive property to multiply 15 by x-3.
8x-56-15x=-45
Subtract 15x from both sides.
-7x-56=-45
Combine 8x and -15x to get -7x.
-7x=-45+56
Add 56 to both sides.
-7x=11
Add -45 and 56 to get 11.
x=\frac{11}{-7}
Divide both sides by -7.
x=-\frac{11}{7}
Fraction \frac{11}{-7} can be rewritten as -\frac{11}{7} by extracting the negative sign.
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y = 3x + 4
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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