150=4x+5(x+21)

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Solution for 150=4x+5(x+21) equation:


Simplifying
150 = 4x + 5(x + 21)

Reorder the terms:
150 = 4x + 5(21 + x)
150 = 4x + (21 * 5 + x * 5)
150 = 4x + (105 + 5x)

Reorder the terms:
150 = 105 + 4x + 5x

Combine like terms: 4x + 5x = 9x
150 = 105 + 9x

Solving
150 = 105 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
150 + -9x = 105 + 9x + -9x

Combine like terms: 9x + -9x = 0
150 + -9x = 105 + 0
150 + -9x = 105

Add '-150' to each side of the equation.
150 + -150 + -9x = 105 + -150

Combine like terms: 150 + -150 = 0
0 + -9x = 105 + -150
-9x = 105 + -150

Combine like terms: 105 + -150 = -45
-9x = -45

Divide each side by '-9'.
x = 5

Simplifying
x = 5

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