3x+(7x+12)=154

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Solution for 3x+(7x+12)=154 equation:


Simplifying
3x + (7x + 12) = 154

Reorder the terms:
3x + (12 + 7x) = 154

Remove parenthesis around (12 + 7x)
3x + 12 + 7x = 154

Reorder the terms:
12 + 3x + 7x = 154

Combine like terms: 3x + 7x = 10x
12 + 10x = 154

Solving
12 + 10x = 154

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + 10x = 154 + -12

Combine like terms: 12 + -12 = 0
0 + 10x = 154 + -12
10x = 154 + -12

Combine like terms: 154 + -12 = 142
10x = 142

Divide each side by '10'.
x = 14.2

Simplifying
x = 14.2

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