7x-42=2*(3x+9)

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Solution for 7x-42=2*(3x+9) equation:


Simplifying
7x + -42 = 2(3x + 9)

Reorder the terms:
-42 + 7x = 2(3x + 9)

Reorder the terms:
-42 + 7x = 2(9 + 3x)
-42 + 7x = (9 * 2 + 3x * 2)
-42 + 7x = (18 + 6x)

Solving
-42 + 7x = 18 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
-42 + 7x + -6x = 18 + 6x + -6x

Combine like terms: 7x + -6x = 1x
-42 + 1x = 18 + 6x + -6x

Combine like terms: 6x + -6x = 0
-42 + 1x = 18 + 0
-42 + 1x = 18

Add '42' to each side of the equation.
-42 + 42 + 1x = 18 + 42

Combine like terms: -42 + 42 = 0
0 + 1x = 18 + 42
1x = 18 + 42

Combine like terms: 18 + 42 = 60
1x = 60

Divide each side by '1'.
x = 60

Simplifying
x = 60

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