10x-5+12=7x+21-4x

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Solution for 10x-5+12=7x+21-4x equation:


Simplifying
10x + -5 + 12 = 7x + 21 + -4x

Reorder the terms:
-5 + 12 + 10x = 7x + 21 + -4x

Combine like terms: -5 + 12 = 7
7 + 10x = 7x + 21 + -4x

Reorder the terms:
7 + 10x = 21 + 7x + -4x

Combine like terms: 7x + -4x = 3x
7 + 10x = 21 + 3x

Solving
7 + 10x = 21 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
7 + 10x + -3x = 21 + 3x + -3x

Combine like terms: 10x + -3x = 7x
7 + 7x = 21 + 3x + -3x

Combine like terms: 3x + -3x = 0
7 + 7x = 21 + 0
7 + 7x = 21

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

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

Combine like terms: 21 + -7 = 14
7x = 14

Divide each side by '7'.
x = 2

Simplifying
x = 2

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