4-3(-y-3)=7

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Solution for 4-3(-y-3)=7 equation:


Simplifying
4 + -3(-1y + -3) = 7

Reorder the terms:
4 + -3(-3 + -1y) = 7
4 + (-3 * -3 + -1y * -3) = 7
4 + (9 + 3y) = 7

Combine like terms: 4 + 9 = 13
13 + 3y = 7

Solving
13 + 3y = 7

Solving for variable 'y'.

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

Add '-13' to each side of the equation.
13 + -13 + 3y = 7 + -13

Combine like terms: 13 + -13 = 0
0 + 3y = 7 + -13
3y = 7 + -13

Combine like terms: 7 + -13 = -6
3y = -6

Divide each side by '3'.
y = -2

Simplifying
y = -2

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