-3(7y+6)+21=-18

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Solution for -3(7y+6)+21=-18 equation:


Simplifying
-3(7y + 6) + 21 = -18

Reorder the terms:
-3(6 + 7y) + 21 = -18
(6 * -3 + 7y * -3) + 21 = -18
(-18 + -21y) + 21 = -18

Reorder the terms:
-18 + 21 + -21y = -18

Combine like terms: -18 + 21 = 3
3 + -21y = -18

Solving
3 + -21y = -18

Solving for variable 'y'.

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

Add '-3' to each side of the equation.
3 + -3 + -21y = -18 + -3

Combine like terms: 3 + -3 = 0
0 + -21y = -18 + -3
-21y = -18 + -3

Combine like terms: -18 + -3 = -21
-21y = -21

Divide each side by '-21'.
y = 1

Simplifying
y = 1

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