3x-7=18+11

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Solution for 3x-7=18+11 equation: 


Simplifying
3x + -7 = 18 + 11

Reorder the terms:
-7 + 3x = 18 + 11

Combine like terms: 18 + 11 = 29
-7 + 3x = 29

Solving
-7 + 3x = 29

Solving for variable 'x'.

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

Add '7' to each side of the equation.
-7 + 7 + 3x = 29 + 7

Combine like terms: -7 + 7 = 0
0 + 3x = 29 + 7
3x = 29 + 7

Combine like terms: 29 + 7 = 36
3x = 36

Divide each side by '3'.
x = 12

Simplifying
x = 12

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