2(x-15)=x+21

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Solution for 2(x-15)=x+21 equation:


Simplifying
2(x + -15) = x + 21

Reorder the terms:
2(-15 + x) = x + 21
(-15 * 2 + x * 2) = x + 21
(-30 + 2x) = x + 21

Reorder the terms:
-30 + 2x = 21 + x

Solving
-30 + 2x = 21 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-30 + 2x + -1x = 21 + x + -1x

Combine like terms: 2x + -1x = 1x
-30 + 1x = 21 + x + -1x

Combine like terms: x + -1x = 0
-30 + 1x = 21 + 0
-30 + 1x = 21

Add '30' to each side of the equation.
-30 + 30 + 1x = 21 + 30

Combine like terms: -30 + 30 = 0
0 + 1x = 21 + 30
1x = 21 + 30

Combine like terms: 21 + 30 = 51
1x = 51

Divide each side by '1'.
x = 51

Simplifying
x = 51

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