2x+3(-1)=12

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Solution for 2x+3(-1)=12 equation: 


Simplifying
2x + 3(-1) = 12

Multiply 3 * -1
2x + -3 = 12

Reorder the terms:
-3 + 2x = 12

Solving
-3 + 2x = 12

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + 2x = 12 + 3

Combine like terms: -3 + 3 = 0
0 + 2x = 12 + 3
2x = 12 + 3

Combine like terms: 12 + 3 = 15
2x = 15

Divide each side by '2'.
x = 7.5

Simplifying
x = 7.5

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