3x+2-7x=42

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


Simplifying
3x + 2 + -7x = 42

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

Combine like terms: 3x + -7x = -4x
2 + -4x = 42

Solving
2 + -4x = 42

Solving for variable 'x'.

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

Add '-2' to each side of the equation.
2 + -2 + -4x = 42 + -2

Combine like terms: 2 + -2 = 0
0 + -4x = 42 + -2
-4x = 42 + -2

Combine like terms: 42 + -2 = 40
-4x = 40

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

Simplifying
x = -10

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