.80x+.15(80)=.70(x+80)

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Solution for .80x+.15(80)=.70(x+80) equation:


Simplifying
0.80x + 0.15(80) = 0.70(x + 80)

Multiply 0.15 * 80
0.80x + 12 = 0.70(x + 80)

Reorder the terms:
12 + 0.80x = 0.70(x + 80)

Reorder the terms:
12 + 0.80x = 0.70(80 + x)
12 + 0.80x = (80 * 0.70 + x * 0.70)
12 + 0.80x = (56 + 0.70x)

Solving
12 + 0.80x = 56 + 0.70x

Solving for variable 'x'.

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

Add '-0.70x' to each side of the equation.
12 + 0.80x + -0.70x = 56 + 0.70x + -0.70x

Combine like terms: 0.80x + -0.70x = 0.1x
12 + 0.1x = 56 + 0.70x + -0.70x

Combine like terms: 0.70x + -0.70x = 0.00
12 + 0.1x = 56 + 0.00
12 + 0.1x = 56

Add '-12' to each side of the equation.
12 + -12 + 0.1x = 56 + -12

Combine like terms: 12 + -12 = 0
0 + 0.1x = 56 + -12
0.1x = 56 + -12

Combine like terms: 56 + -12 = 44
0.1x = 44

Divide each side by '0.1'.
x = 440

Simplifying
x = 440

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