15(3+x)=3(x-3)-4x

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Solution for 15(3+x)=3(x-3)-4x equation:


Simplifying
15(3 + x) = 3(x + -3) + -4x
(3 * 15 + x * 15) = 3(x + -3) + -4x
(45 + 15x) = 3(x + -3) + -4x

Reorder the terms:
45 + 15x = 3(-3 + x) + -4x
45 + 15x = (-3 * 3 + x * 3) + -4x
45 + 15x = (-9 + 3x) + -4x

Combine like terms: 3x + -4x = -1x
45 + 15x = -9 + -1x

Solving
45 + 15x = -9 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
45 + 15x + x = -9 + -1x + x

Combine like terms: 15x + x = 16x
45 + 16x = -9 + -1x + x

Combine like terms: -1x + x = 0
45 + 16x = -9 + 0
45 + 16x = -9

Add '-45' to each side of the equation.
45 + -45 + 16x = -9 + -45

Combine like terms: 45 + -45 = 0
0 + 16x = -9 + -45
16x = -9 + -45

Combine like terms: -9 + -45 = -54
16x = -54

Divide each side by '16'.
x = -3.375

Simplifying
x = -3.375

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