.80x+.20(8)=.40(x+8)

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Solution for .80x+.20(8)=.40(x+8) equation:


Simplifying
0.80x + 0.20(8) = 0.40(x + 8)

Multiply 0.20 * 8
0.80x + 1.6 = 0.40(x + 8)

Reorder the terms:
1.6 + 0.80x = 0.40(x + 8)

Reorder the terms:
1.6 + 0.80x = 0.40(8 + x)
1.6 + 0.80x = (8 * 0.40 + x * 0.40)
1.6 + 0.80x = (3.2 + 0.40x)

Solving
1.6 + 0.80x = 3.2 + 0.40x

Solving for variable 'x'.

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

Add '-0.40x' to each side of the equation.
1.6 + 0.80x + -0.40x = 3.2 + 0.40x + -0.40x

Combine like terms: 0.80x + -0.40x = 0.4x
1.6 + 0.4x = 3.2 + 0.40x + -0.40x

Combine like terms: 0.40x + -0.40x = 0.00
1.6 + 0.4x = 3.2 + 0.00
1.6 + 0.4x = 3.2

Add '-1.6' to each side of the equation.
1.6 + -1.6 + 0.4x = 3.2 + -1.6

Combine like terms: 1.6 + -1.6 = 0.0
0.0 + 0.4x = 3.2 + -1.6
0.4x = 3.2 + -1.6

Combine like terms: 3.2 + -1.6 = 1.6
0.4x = 1.6

Divide each side by '0.4'.
x = 4

Simplifying
x = 4

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