15.5=2.5(3-x)

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Solution for 15.5=2.5(3-x) equation:


Simplifying
15.5 = 2.5(3 + -1x)
15.5 = (3 * 2.5 + -1x * 2.5)
15.5 = (7.5 + -2.5x)

Solving
15.5 = 7.5 + -2.5x

Solving for variable 'x'.

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

Add '2.5x' to each side of the equation.
15.5 + 2.5x = 7.5 + -2.5x + 2.5x

Combine like terms: -2.5x + 2.5x = 0.0
15.5 + 2.5x = 7.5 + 0.0
15.5 + 2.5x = 7.5

Add '-15.5' to each side of the equation.
15.5 + -15.5 + 2.5x = 7.5 + -15.5

Combine like terms: 15.5 + -15.5 = 0.0
0.0 + 2.5x = 7.5 + -15.5
2.5x = 7.5 + -15.5

Combine like terms: 7.5 + -15.5 = -8
2.5x = -8

Divide each side by '2.5'.
x = -3.2

Simplifying
x = -3.2

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