.8(x+1)-3(x+4)=7(2-x)

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Solution for .8(x+1)-3(x+4)=7(2-x) equation:


Simplifying
0.8(x + 1) + -3(x + 4) = 7(2 + -1x)

Reorder the terms:
0.8(1 + x) + -3(x + 4) = 7(2 + -1x)
(1 * 0.8 + x * 0.8) + -3(x + 4) = 7(2 + -1x)
(0.8 + 0.8x) + -3(x + 4) = 7(2 + -1x)

Reorder the terms:
0.8 + 0.8x + -3(4 + x) = 7(2 + -1x)
0.8 + 0.8x + (4 * -3 + x * -3) = 7(2 + -1x)
0.8 + 0.8x + (-12 + -3x) = 7(2 + -1x)

Reorder the terms:
0.8 + -12 + 0.8x + -3x = 7(2 + -1x)

Combine like terms: 0.8 + -12 = -11.2
-11.2 + 0.8x + -3x = 7(2 + -1x)

Combine like terms: 0.8x + -3x = -2.2x
-11.2 + -2.2x = 7(2 + -1x)
-11.2 + -2.2x = (2 * 7 + -1x * 7)
-11.2 + -2.2x = (14 + -7x)

Solving
-11.2 + -2.2x = 14 + -7x

Solving for variable 'x'.

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

Add '7x' to each side of the equation.
-11.2 + -2.2x + 7x = 14 + -7x + 7x

Combine like terms: -2.2x + 7x = 4.8x
-11.2 + 4.8x = 14 + -7x + 7x

Combine like terms: -7x + 7x = 0
-11.2 + 4.8x = 14 + 0
-11.2 + 4.8x = 14

Add '11.2' to each side of the equation.
-11.2 + 11.2 + 4.8x = 14 + 11.2

Combine like terms: -11.2 + 11.2 = 0.0
0.0 + 4.8x = 14 + 11.2
4.8x = 14 + 11.2

Combine like terms: 14 + 11.2 = 25.2
4.8x = 25.2

Divide each side by '4.8'.
x = 5.25

Simplifying
x = 5.25

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