7+5x+2x=42

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Solution for 7+5x+2x=42 equation: 


Simplifying
7 + 5x + 2x = 42

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

Solving
7 + 7x = 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 + 7x = 42 + -7

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

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

Divide each side by '7'.
x = 5

Simplifying
x = 5

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