20(x-4)=18(x+5)

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Solution for 20(x-4)=18(x+5) equation:


Simplifying
20(x + -4) = 18(x + 5)

Reorder the terms:
20(-4 + x) = 18(x + 5)
(-4 * 20 + x * 20) = 18(x + 5)
(-80 + 20x) = 18(x + 5)

Reorder the terms:
-80 + 20x = 18(5 + x)
-80 + 20x = (5 * 18 + x * 18)
-80 + 20x = (90 + 18x)

Solving
-80 + 20x = 90 + 18x

Solving for variable 'x'.

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

Add '-18x' to each side of the equation.
-80 + 20x + -18x = 90 + 18x + -18x

Combine like terms: 20x + -18x = 2x
-80 + 2x = 90 + 18x + -18x

Combine like terms: 18x + -18x = 0
-80 + 2x = 90 + 0
-80 + 2x = 90

Add '80' to each side of the equation.
-80 + 80 + 2x = 90 + 80

Combine like terms: -80 + 80 = 0
0 + 2x = 90 + 80
2x = 90 + 80

Combine like terms: 90 + 80 = 170
2x = 170

Divide each side by '2'.
x = 85

Simplifying
x = 85

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