Solve for x
x=26
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7\times 36+15\left(82-x\right)=42x
Multiply both sides of the equation by 420, the least common multiple of 60,28,10.
252+15\left(82-x\right)=42x
Multiply 7 and 36 to get 252.
252+1230-15x=42x
Use the distributive property to multiply 15 by 82-x.
1482-15x=42x
Add 252 and 1230 to get 1482.
1482-15x-42x=0
Subtract 42x from both sides.
1482-57x=0
Combine -15x and -42x to get -57x.
-57x=-1482
Subtract 1482 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-1482}{-57}
Divide both sides by -57.
x=26
Divide -1482 by -57 to get 26.
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