100(0.90x+0.10(60))=100(0.80(x+60))

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Solution for 100(0.90x+0.10(60))=100(0.80(x+60)) equation:


Simplifying
100(0.90x + 0.10(60)) = 100(0.80(x + 60))

Multiply 0.10 * 60
100(0.90x + 6) = 100(0.80(x + 60))

Reorder the terms:
100(6 + 0.90x) = 100(0.80(x + 60))
(6 * 100 + 0.90x * 100) = 100(0.80(x + 60))
(600 + 90x) = 100(0.80(x + 60))

Reorder the terms:
600 + 90x = 100(0.80(60 + x))
600 + 90x = 100((60 * 0.80 + x * 0.80))
600 + 90x = 100((48 + 0.80x))
600 + 90x = (48 * 100 + 0.80x * 100)
600 + 90x = (4800 + 80x)

Solving
600 + 90x = 4800 + 80x

Solving for variable 'x'.

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

Add '-80x' to each side of the equation.
600 + 90x + -80x = 4800 + 80x + -80x

Combine like terms: 90x + -80x = 10x
600 + 10x = 4800 + 80x + -80x

Combine like terms: 80x + -80x = 0
600 + 10x = 4800 + 0
600 + 10x = 4800

Add '-600' to each side of the equation.
600 + -600 + 10x = 4800 + -600

Combine like terms: 600 + -600 = 0
0 + 10x = 4800 + -600
10x = 4800 + -600

Combine like terms: 4800 + -600 = 4200
10x = 4200

Divide each side by '10'.
x = 420

Simplifying
x = 420

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