Skip to main content
Solve for x
Tick mark Image
Graph

Similar Problems from Web Search

Share

7x+21=3\left(12x-3\right)
Multiply both sides of the equation by 21, the least common multiple of 3,7.
7x+21=36x-9
Use the distributive property to multiply 3 by 12x-3.
7x+21-36x=-9
Subtract 36x from both sides.
-29x+21=-9
Combine 7x and -36x to get -29x.
-29x=-9-21
Subtract 21 from both sides.
-29x=-30
Subtract 21 from -9 to get -30.
x=\frac{-30}{-29}
Divide both sides by -29.
x=\frac{30}{29}
Fraction \frac{-30}{-29} can be simplified to \frac{30}{29} by removing the negative sign from both the numerator and the denominator.