42=3x+7x+2

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


Simplifying
42 = 3x + 7x + 2

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

Combine like terms: 3x + 7x = 10x
42 = 2 + 10x

Solving
42 = 2 + 10x

Solving for variable 'x'.

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

Add '-10x' to each side of the equation.
42 + -10x = 2 + 10x + -10x

Combine like terms: 10x + -10x = 0
42 + -10x = 2 + 0
42 + -10x = 2

Add '-42' to each side of the equation.
42 + -42 + -10x = 2 + -42

Combine like terms: 42 + -42 = 0
0 + -10x = 2 + -42
-10x = 2 + -42

Combine like terms: 2 + -42 = -40
-10x = -40

Divide each side by '-10'.
x = 4

Simplifying
x = 4

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