3(x+2.5)=-7.5

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Solution for 3(x+2.5)=-7.5 equation: 


Simplifying
3(x + 2.5) = -7.5

Reorder the terms:
3(2.5 + x) = -7.5
(2.5 * 3 + x * 3) = -7.5
(7.5 + 3x) = -7.5

Solving
7.5 + 3x = -7.5

Solving for variable 'x'.

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

Add '-7.5' to each side of the equation.
7.5 + -7.5 + 3x = -7.5 + -7.5

Combine like terms: 7.5 + -7.5 = 0.0
0.0 + 3x = -7.5 + -7.5
3x = -7.5 + -7.5

Combine like terms: -7.5 + -7.5 = -15
3x = -15

Divide each side by '3'.
x = -5

Simplifying
x = -5

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