21x+7x=84+35x

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Solution for 21x+7x=84+35x equation:


Simplifying
21x + 7x = 84 + 35x

Combine like terms: 21x + 7x = 28x
28x = 84 + 35x

Solving
28x = 84 + 35x

Solving for variable 'x'.

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

Add '-35x' to each side of the equation.
28x + -35x = 84 + 35x + -35x

Combine like terms: 28x + -35x = -7x
-7x = 84 + 35x + -35x

Combine like terms: 35x + -35x = 0
-7x = 84 + 0
-7x = 84

Divide each side by '-7'.
x = -12

Simplifying
x = -12

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