0.8(5x+15)=2.8-(x+3)

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Solution for 0.8(5x+15)=2.8-(x+3) equation:


Simplifying
0.8(5x + 15) = 2.8 + -1(x + 3)

Reorder the terms:
0.8(15 + 5x) = 2.8 + -1(x + 3)
(15 * 0.8 + 5x * 0.8) = 2.8 + -1(x + 3)
(12 + 4x) = 2.8 + -1(x + 3)

Reorder the terms:
12 + 4x = 2.8 + -1(3 + x)
12 + 4x = 2.8 + (3 * -1 + x * -1)
12 + 4x = 2.8 + (-3 + -1x)

Combine like terms: 2.8 + -3 = -0.2
12 + 4x = -0.2 + -1x

Solving
12 + 4x = -0.2 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
12 + 4x + x = -0.2 + -1x + x

Combine like terms: 4x + x = 5x
12 + 5x = -0.2 + -1x + x

Combine like terms: -1x + x = 0
12 + 5x = -0.2 + 0
12 + 5x = -0.2

Add '-12' to each side of the equation.
12 + -12 + 5x = -0.2 + -12

Combine like terms: 12 + -12 = 0
0 + 5x = -0.2 + -12
5x = -0.2 + -12

Combine like terms: -0.2 + -12 = -12.2
5x = -12.2

Divide each side by '5'.
x = -2.44

Simplifying
x = -2.44

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