2.5x+15+0.5(x-4)=1.2+1(0.9x-6)

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Solution for 2.5x+15+0.5(x-4)=1.2+1(0.9x-6) equation:


Simplifying
2.5x + 15 + 0.5(x + -4) = 1.2 + 1(0.9x + -6)

Reorder the terms:
2.5x + 15 + 0.5(-4 + x) = 1.2 + 1(0.9x + -6)
2.5x + 15 + (-4 * 0.5 + x * 0.5) = 1.2 + 1(0.9x + -6)
2.5x + 15 + (-2 + 0.5x) = 1.2 + 1(0.9x + -6)

Reorder the terms:
15 + -2 + 2.5x + 0.5x = 1.2 + 1(0.9x + -6)

Combine like terms: 15 + -2 = 13
13 + 2.5x + 0.5x = 1.2 + 1(0.9x + -6)

Combine like terms: 2.5x + 0.5x = 3x
13 + 3x = 1.2 + 1(0.9x + -6)

Reorder the terms:
13 + 3x = 1.2 + 1(-6 + 0.9x)
13 + 3x = 1.2 + (-6 * 1 + 0.9x * 1)
13 + 3x = 1.2 + (-6 + 0.9x)

Combine like terms: 1.2 + -6 = -4.8
13 + 3x = -4.8 + 0.9x

Solving
13 + 3x = -4.8 + 0.9x

Solving for variable 'x'.

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

Add '-0.9x' to each side of the equation.
13 + 3x + -0.9x = -4.8 + 0.9x + -0.9x

Combine like terms: 3x + -0.9x = 2.1x
13 + 2.1x = -4.8 + 0.9x + -0.9x

Combine like terms: 0.9x + -0.9x = 0.0
13 + 2.1x = -4.8 + 0.0
13 + 2.1x = -4.8

Add '-13' to each side of the equation.
13 + -13 + 2.1x = -4.8 + -13

Combine like terms: 13 + -13 = 0
0 + 2.1x = -4.8 + -13
2.1x = -4.8 + -13

Combine like terms: -4.8 + -13 = -17.8
2.1x = -17.8

Divide each side by '2.1'.
x = -8.476190476

Simplifying
x = -8.476190476

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