3(5+2x)=45+8x

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Solution for 3(5+2x)=45+8x equation:


Simplifying
3(5 + 2x) = 45 + 8x
(5 * 3 + 2x * 3) = 45 + 8x
(15 + 6x) = 45 + 8x

Solving
15 + 6x = 45 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
15 + 6x + -8x = 45 + 8x + -8x

Combine like terms: 6x + -8x = -2x
15 + -2x = 45 + 8x + -8x

Combine like terms: 8x + -8x = 0
15 + -2x = 45 + 0
15 + -2x = 45

Add '-15' to each side of the equation.
15 + -15 + -2x = 45 + -15

Combine like terms: 15 + -15 = 0
0 + -2x = 45 + -15
-2x = 45 + -15

Combine like terms: 45 + -15 = 30
-2x = 30

Divide each side by '-2'.
x = -15

Simplifying
x = -15

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