100=5(4x-9)

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Solution for 100=5(4x-9) equation:


Simplifying
100 = 5(4x + -9)

Reorder the terms:
100 = 5(-9 + 4x)
100 = (-9 * 5 + 4x * 5)
100 = (-45 + 20x)

Solving
100 = -45 + 20x

Solving for variable 'x'.

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

Add '-20x' to each side of the equation.
100 + -20x = -45 + 20x + -20x

Combine like terms: 20x + -20x = 0
100 + -20x = -45 + 0
100 + -20x = -45

Add '-100' to each side of the equation.
100 + -100 + -20x = -45 + -100

Combine like terms: 100 + -100 = 0
0 + -20x = -45 + -100
-20x = -45 + -100

Combine like terms: -45 + -100 = -145
-20x = -145

Divide each side by '-20'.
x = 7.25

Simplifying
x = 7.25

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