3x+7+2x=42

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Solution for 3x+7+2x=42 equation: 


Simplifying
3x + 7 + 2x = 42

Reorder the terms:
7 + 3x + 2x = 42

Combine like terms: 3x + 2x = 5x
7 + 5x = 42

Solving
7 + 5x = 42

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + -7 + 5x = 42 + -7

Combine like terms: 7 + -7 = 0
0 + 5x = 42 + -7
5x = 42 + -7

Combine like terms: 42 + -7 = 35
5x = 35

Divide each side by '5'.
x = 7

Simplifying
x = 7

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