70-2x=7x+21

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Solution for 70-2x=7x+21 equation:


Simplifying
70 + -2x = 7x + 21

Reorder the terms:
70 + -2x = 21 + 7x

Solving
70 + -2x = 21 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
70 + -2x + -7x = 21 + 7x + -7x

Combine like terms: -2x + -7x = -9x
70 + -9x = 21 + 7x + -7x

Combine like terms: 7x + -7x = 0
70 + -9x = 21 + 0
70 + -9x = 21

Add '-70' to each side of the equation.
70 + -70 + -9x = 21 + -70

Combine like terms: 70 + -70 = 0
0 + -9x = 21 + -70
-9x = 21 + -70

Combine like terms: 21 + -70 = -49
-9x = -49

Divide each side by '-9'.
x = 5.444444444

Simplifying
x = 5.444444444

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