3.5x-12=1x+3

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Solution for 3.5x-12=1x+3 equation:


Simplifying
3.5x + -12 = 1x + 3

Reorder the terms:
-12 + 3.5x = 1x + 3

Reorder the terms:
-12 + 3.5x = 3 + 1x

Solving
-12 + 3.5x = 3 + 1x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-12 + 3.5x + -1x = 3 + 1x + -1x

Combine like terms: 3.5x + -1x = 2.5x
-12 + 2.5x = 3 + 1x + -1x

Combine like terms: 1x + -1x = 0
-12 + 2.5x = 3 + 0
-12 + 2.5x = 3

Add '12' to each side of the equation.
-12 + 12 + 2.5x = 3 + 12

Combine like terms: -12 + 12 = 0
0 + 2.5x = 3 + 12
2.5x = 3 + 12

Combine like terms: 3 + 12 = 15
2.5x = 15

Divide each side by '2.5'.
x = 6

Simplifying
x = 6

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