-3(10+5x)=-90

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Solution for -3(10+5x)=-90 equation: 


Simplifying
-3(10 + 5x) = -90
(10 * -3 + 5x * -3) = -90
(-30 + -15x) = -90

Solving
-30 + -15x = -90

Solving for variable 'x'.

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

Add '30' to each side of the equation.
-30 + 30 + -15x = -90 + 30

Combine like terms: -30 + 30 = 0
0 + -15x = -90 + 30
-15x = -90 + 30

Combine like terms: -90 + 30 = -60
-15x = -60

Divide each side by '-15'.
x = 4

Simplifying
x = 4

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