7x+42=4x+99

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Solution for 7x+42=4x+99 equation:


Simplifying
7x + 42 = 4x + 99

Reorder the terms:
42 + 7x = 4x + 99

Reorder the terms:
42 + 7x = 99 + 4x

Solving
42 + 7x = 99 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
42 + 7x + -4x = 99 + 4x + -4x

Combine like terms: 7x + -4x = 3x
42 + 3x = 99 + 4x + -4x

Combine like terms: 4x + -4x = 0
42 + 3x = 99 + 0
42 + 3x = 99

Add '-42' to each side of the equation.
42 + -42 + 3x = 99 + -42

Combine like terms: 42 + -42 = 0
0 + 3x = 99 + -42
3x = 99 + -42

Combine like terms: 99 + -42 = 57
3x = 57

Divide each side by '3'.
x = 19

Simplifying
x = 19

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