5(x+3)=4(x+9)

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Solution for 5(x+3)=4(x+9) equation:


Simplifying
5(x + 3) = 4(x + 9)

Reorder the terms:
5(3 + x) = 4(x + 9)
(3 * 5 + x * 5) = 4(x + 9)
(15 + 5x) = 4(x + 9)

Reorder the terms:
15 + 5x = 4(9 + x)
15 + 5x = (9 * 4 + x * 4)
15 + 5x = (36 + 4x)

Solving
15 + 5x = 36 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
15 + 5x + -4x = 36 + 4x + -4x

Combine like terms: 5x + -4x = 1x
15 + 1x = 36 + 4x + -4x

Combine like terms: 4x + -4x = 0
15 + 1x = 36 + 0
15 + 1x = 36

Add '-15' to each side of the equation.
15 + -15 + 1x = 36 + -15

Combine like terms: 15 + -15 = 0
0 + 1x = 36 + -15
1x = 36 + -15

Combine like terms: 36 + -15 = 21
1x = 21

Divide each side by '1'.
x = 21

Simplifying
x = 21

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