.40(80)+.10=.30(x+80)

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Solution for .40(80)+.10=.30(x+80) equation:


Simplifying
0.40(80) + 0.10 = 0.30(x + 80)

Multiply 0.40 * 80
32 + 0.10 = 0.30(x + 80)

Combine like terms: 32 + 0.10 = 32.1
32.1 = 0.30(x + 80)

Reorder the terms:
32.1 = 0.30(80 + x)
32.1 = (80 * 0.30 + x * 0.30)
32.1 = (24 + 0.30x)

Solving
32.1 = 24 + 0.30x

Solving for variable 'x'.

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

Add '-0.30x' to each side of the equation.
32.1 + -0.30x = 24 + 0.30x + -0.30x

Combine like terms: 0.30x + -0.30x = 0.00
32.1 + -0.30x = 24 + 0.00
32.1 + -0.30x = 24

Add '-32.1' to each side of the equation.
32.1 + -32.1 + -0.30x = 24 + -32.1

Combine like terms: 32.1 + -32.1 = 0.0
0.0 + -0.30x = 24 + -32.1
-0.30x = 24 + -32.1

Combine like terms: 24 + -32.1 = -8.1
-0.30x = -8.1

Divide each side by '-0.30'.
x = 27

Simplifying
x = 27

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