(9x-42)+(x+15)=30

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Solution for (9x-42)+(x+15)=30 equation:


Simplifying
(9x + -42) + (x + 15) = 30

Reorder the terms:
(-42 + 9x) + (x + 15) = 30

Remove parenthesis around (-42 + 9x)
-42 + 9x + (x + 15) = 30

Reorder the terms:
-42 + 9x + (15 + x) = 30

Remove parenthesis around (15 + x)
-42 + 9x + 15 + x = 30

Reorder the terms:
-42 + 15 + 9x + x = 30

Combine like terms: -42 + 15 = -27
-27 + 9x + x = 30

Combine like terms: 9x + x = 10x
-27 + 10x = 30

Solving
-27 + 10x = 30

Solving for variable 'x'.

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

Add '27' to each side of the equation.
-27 + 27 + 10x = 30 + 27

Combine like terms: -27 + 27 = 0
0 + 10x = 30 + 27
10x = 30 + 27

Combine like terms: 30 + 27 = 57
10x = 57

Divide each side by '10'.
x = 5.7

Simplifying
x = 5.7

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