Skip to main content
Solve for x
Tick mark Image
Graph

Similar Problems from Web Search

Share

30-21x+70x=105x-140-21x
Multiply both sides of the equation by 105, the least common multiple of 7,5,3.
30+49x=105x-140-21x
Combine -21x and 70x to get 49x.
30+49x=84x-140
Combine 105x and -21x to get 84x.
30+49x-84x=-140
Subtract 84x from both sides.
30-35x=-140
Combine 49x and -84x to get -35x.
-35x=-140-30
Subtract 30 from both sides.
-35x=-170
Subtract 30 from -140 to get -170.
x=\frac{-170}{-35}
Divide both sides by -35.
x=\frac{34}{7}
Reduce the fraction \frac{-170}{-35} to lowest terms by extracting and canceling out -5.