(3x+18)+(5x-42)=

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Solution for (3x+18)+(5x-42)= equation:


Simplifying
(3x + 18) + (5x + -42) = 0

Reorder the terms:
(18 + 3x) + (5x + -42) = 0

Remove parenthesis around (18 + 3x)
18 + 3x + (5x + -42) = 0

Reorder the terms:
18 + 3x + (-42 + 5x) = 0

Remove parenthesis around (-42 + 5x)
18 + 3x + -42 + 5x = 0

Reorder the terms:
18 + -42 + 3x + 5x = 0

Combine like terms: 18 + -42 = -24
-24 + 3x + 5x = 0

Combine like terms: 3x + 5x = 8x
-24 + 8x = 0

Solving
-24 + 8x = 0

Solving for variable 'x'.

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

Add '24' to each side of the equation.
-24 + 24 + 8x = 0 + 24

Combine like terms: -24 + 24 = 0
0 + 8x = 0 + 24
8x = 0 + 24

Combine like terms: 0 + 24 = 24
8x = 24

Divide each side by '8'.
x = 3

Simplifying
x = 3

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