3(x+7)-2x=4x-9+7x

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Solution for 3(x+7)-2x=4x-9+7x equation:


Simplifying
3(x + 7) + -2x = 4x + -9 + 7x

Reorder the terms:
3(7 + x) + -2x = 4x + -9 + 7x
(7 * 3 + x * 3) + -2x = 4x + -9 + 7x
(21 + 3x) + -2x = 4x + -9 + 7x

Combine like terms: 3x + -2x = 1x
21 + 1x = 4x + -9 + 7x

Reorder the terms:
21 + 1x = -9 + 4x + 7x

Combine like terms: 4x + 7x = 11x
21 + 1x = -9 + 11x

Solving
21 + 1x = -9 + 11x

Solving for variable 'x'.

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

Add '-11x' to each side of the equation.
21 + 1x + -11x = -9 + 11x + -11x

Combine like terms: 1x + -11x = -10x
21 + -10x = -9 + 11x + -11x

Combine like terms: 11x + -11x = 0
21 + -10x = -9 + 0
21 + -10x = -9

Add '-21' to each side of the equation.
21 + -21 + -10x = -9 + -21

Combine like terms: 21 + -21 = 0
0 + -10x = -9 + -21
-10x = -9 + -21

Combine like terms: -9 + -21 = -30
-10x = -30

Divide each side by '-10'.
x = 3

Simplifying
x = 3

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