121-7x=38x+21

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Solution for 121-7x=38x+21 equation:


Simplifying
121 + -7x = 38x + 21

Reorder the terms:
121 + -7x = 21 + 38x

Solving
121 + -7x = 21 + 38x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-38x' to each side of the equation.
121 + -7x + -38x = 21 + 38x + -38x

Combine like terms: -7x + -38x = -45x
121 + -45x = 21 + 38x + -38x

Combine like terms: 38x + -38x = 0
121 + -45x = 21 + 0
121 + -45x = 21

Add '-121' to each side of the equation.
121 + -121 + -45x = 21 + -121

Combine like terms: 121 + -121 = 0
0 + -45x = 21 + -121
-45x = 21 + -121

Combine like terms: 21 + -121 = -100
-45x = -100

Divide each side by '-45'.
x = 2.222222222

Simplifying
x = 2.222222222

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