-3(5x+7)=

Solution for -3(5x+7)= equation:

Simplifying
-3(5x + 7) = 0

Reorder the terms:
-3(7 + 5x) = 0
(7 * -3 + 5x * -3) = 0
(-21 + -15x) = 0

Solving
-21 + -15x = 0

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 + -15x = 0 + 21

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

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

Divide each side by '-15'.
x = -1.4

Simplifying
x = -1.4