7x+5=-4x+3x+21

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Solution for 7x+5=-4x+3x+21 equation:


Simplifying
7x + 5 = -4x + 3x + 21

Reorder the terms:
5 + 7x = -4x + 3x + 21

Reorder the terms:
5 + 7x = 21 + -4x + 3x

Combine like terms: -4x + 3x = -1x
5 + 7x = 21 + -1x

Solving
5 + 7x = 21 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
5 + 7x + x = 21 + -1x + x

Combine like terms: 7x + x = 8x
5 + 8x = 21 + -1x + x

Combine like terms: -1x + x = 0
5 + 8x = 21 + 0
5 + 8x = 21

Add '-5' to each side of the equation.
5 + -5 + 8x = 21 + -5

Combine like terms: 5 + -5 = 0
0 + 8x = 21 + -5
8x = 21 + -5

Combine like terms: 21 + -5 = 16
8x = 16

Divide each side by '8'.
x = 2

Simplifying
x = 2

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