0.8(x-1)+0.2(3x+12)=4+x

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Solution for 0.8(x-1)+0.2(3x+12)=4+x equation:


Simplifying
0.8(x + -1) + 0.2(3x + 12) = 4 + x

Reorder the terms:
0.8(-1 + x) + 0.2(3x + 12) = 4 + x
(-1 * 0.8 + x * 0.8) + 0.2(3x + 12) = 4 + x
(-0.8 + 0.8x) + 0.2(3x + 12) = 4 + x

Reorder the terms:
-0.8 + 0.8x + 0.2(12 + 3x) = 4 + x
-0.8 + 0.8x + (12 * 0.2 + 3x * 0.2) = 4 + x
-0.8 + 0.8x + (2.4 + 0.6x) = 4 + x

Reorder the terms:
-0.8 + 2.4 + 0.8x + 0.6x = 4 + x

Combine like terms: -0.8 + 2.4 = 1.6
1.6 + 0.8x + 0.6x = 4 + x

Combine like terms: 0.8x + 0.6x = 1.4x
1.6 + 1.4x = 4 + x

Solving
1.6 + 1.4x = 4 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
1.6 + 1.4x + -1x = 4 + x + -1x

Combine like terms: 1.4x + -1x = 0.4x
1.6 + 0.4x = 4 + x + -1x

Combine like terms: x + -1x = 0
1.6 + 0.4x = 4 + 0
1.6 + 0.4x = 4

Add '-1.6' to each side of the equation.
1.6 + -1.6 + 0.4x = 4 + -1.6

Combine like terms: 1.6 + -1.6 = 0.0
0.0 + 0.4x = 4 + -1.6
0.4x = 4 + -1.6

Combine like terms: 4 + -1.6 = 2.4
0.4x = 2.4

Divide each side by '0.4'.
x = 6

Simplifying
x = 6

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