-3(7+8x)=15

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Solution for -3(7+8x)=15 equation: 


Simplifying
-3(7 + 8x) = 15
(7 * -3 + 8x * -3) = 15
(-21 + -24x) = 15

Solving
-21 + -24x = 15

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + -24x = 15 + 21

Combine like terms: -21 + 21 = 0
0 + -24x = 15 + 21
-24x = 15 + 21

Combine like terms: 15 + 21 = 36
-24x = 36

Divide each side by '-24'.
x = -1.5

Simplifying
x = -1.5

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