3(2-7)-3(-2)=y

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Solution for 3(2-7)-3(-2)=y equation:


Simplifying
3(2 + -7) + -3(-2) = y

Combine like terms: 2 + -7 = -5
3(-5) + -3(-2) = y

Multiply 3 * -5
-15 + -3(-2) = y

Multiply -3 * -2
-15 + 6 = y

Combine like terms: -15 + 6 = -9
-9 = y

Solving
-9 = y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
-9 + -1y = y + -1y

Combine like terms: y + -1y = 0
-9 + -1y = 0

Add '9' to each side of the equation.
-9 + 9 + -1y = 0 + 9

Combine like terms: -9 + 9 = 0
0 + -1y = 0 + 9
-1y = 0 + 9

Combine like terms: 0 + 9 = 9
-1y = 9

Divide each side by '-1'.
y = -9

Simplifying
y = -9

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