3(5x+15)=240-1(x+3)

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Solution for 3(5x+15)=240-1(x+3) equation:


Simplifying
3(5x + 15) = 240 + -1(x + 3)

Reorder the terms:
3(15 + 5x) = 240 + -1(x + 3)
(15 * 3 + 5x * 3) = 240 + -1(x + 3)
(45 + 15x) = 240 + -1(x + 3)

Reorder the terms:
45 + 15x = 240 + -1(3 + x)
45 + 15x = 240 + (3 * -1 + x * -1)
45 + 15x = 240 + (-3 + -1x)

Combine like terms: 240 + -3 = 237
45 + 15x = 237 + -1x

Solving
45 + 15x = 237 + -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 = 237 + -1x + x

Combine like terms: 15x + x = 16x
45 + 16x = 237 + -1x + x

Combine like terms: -1x + x = 0
45 + 16x = 237 + 0
45 + 16x = 237

Add '-45' to each side of the equation.
45 + -45 + 16x = 237 + -45

Combine like terms: 45 + -45 = 0
0 + 16x = 237 + -45
16x = 237 + -45

Combine like terms: 237 + -45 = 192
16x = 192

Divide each side by '16'.
x = 12

Simplifying
x = 12

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