10x+5-3x+7=40

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Solution for 10x+5-3x+7=40 equation:


Simplifying
10x + 5 + -3x + 7 = 40

Reorder the terms:
5 + 7 + 10x + -3x = 40

Combine like terms: 5 + 7 = 12
12 + 10x + -3x = 40

Combine like terms: 10x + -3x = 7x
12 + 7x = 40

Solving
12 + 7x = 40

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + 7x = 40 + -12

Combine like terms: 12 + -12 = 0
0 + 7x = 40 + -12
7x = 40 + -12

Combine like terms: 40 + -12 = 28
7x = 28

Divide each side by '7'.
x = 4

Simplifying
x = 4

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