4x+42=7x+12

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Solution for 4x+42=7x+12 equation:


Simplifying
4x + 42 = 7x + 12

Reorder the terms:
42 + 4x = 7x + 12

Reorder the terms:
42 + 4x = 12 + 7x

Solving
42 + 4x = 12 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
42 + 4x + -7x = 12 + 7x + -7x

Combine like terms: 4x + -7x = -3x
42 + -3x = 12 + 7x + -7x

Combine like terms: 7x + -7x = 0
42 + -3x = 12 + 0
42 + -3x = 12

Add '-42' to each side of the equation.
42 + -42 + -3x = 12 + -42

Combine like terms: 42 + -42 = 0
0 + -3x = 12 + -42
-3x = 12 + -42

Combine like terms: 12 + -42 = -30
-3x = -30

Divide each side by '-3'.
x = 10

Simplifying
x = 10

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