2.5x+15+0.5(x-4)=1.2x+2(0.9-6)

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Solution for 2.5x+15+0.5(x-4)=1.2x+2(0.9-6) equation:


Simplifying
2.5x + 15 + 0.5(x + -4) = 1.2x + 2(0.9 + -6)

Reorder the terms:
2.5x + 15 + 0.5(-4 + x) = 1.2x + 2(0.9 + -6)
2.5x + 15 + (-4 * 0.5 + x * 0.5) = 1.2x + 2(0.9 + -6)
2.5x + 15 + (-2 + 0.5x) = 1.2x + 2(0.9 + -6)

Reorder the terms:
15 + -2 + 2.5x + 0.5x = 1.2x + 2(0.9 + -6)

Combine like terms: 15 + -2 = 13
13 + 2.5x + 0.5x = 1.2x + 2(0.9 + -6)

Combine like terms: 2.5x + 0.5x = 3x
13 + 3x = 1.2x + 2(0.9 + -6)

Combine like terms: 0.9 + -6 = -5.1
13 + 3x = 1.2x + 2(-5.1)

Multiply 2 * -5.1
13 + 3x = 1.2x + -10.2

Reorder the terms:
13 + 3x = -10.2 + 1.2x

Solving
13 + 3x = -10.2 + 1.2x

Solving for variable 'x'.

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

Add '-1.2x' to each side of the equation.
13 + 3x + -1.2x = -10.2 + 1.2x + -1.2x

Combine like terms: 3x + -1.2x = 1.8x
13 + 1.8x = -10.2 + 1.2x + -1.2x

Combine like terms: 1.2x + -1.2x = 0.0
13 + 1.8x = -10.2 + 0.0
13 + 1.8x = -10.2

Add '-13' to each side of the equation.
13 + -13 + 1.8x = -10.2 + -13

Combine like terms: 13 + -13 = 0
0 + 1.8x = -10.2 + -13
1.8x = -10.2 + -13

Combine like terms: -10.2 + -13 = -23.2
1.8x = -23.2

Divide each side by '1.8'.
x = -12.88888889

Simplifying
x = -12.88888889

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