Y-7=3(-2-1)

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Solution for Y-7=3(-2-1) equation: 


Simplifying
Y + -7 = 3(-2 + -1)

Reorder the terms:
-7 + Y = 3(-2 + -1)

Combine like terms: -2 + -1 = -3
-7 + Y = 3(-3)

Multiply 3 * -3
-7 + Y = -9

Solving
-7 + Y = -9

Solving for variable 'Y'.

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

Add '7' to each side of the equation.
-7 + 7 + Y = -9 + 7

Combine like terms: -7 + 7 = 0
0 + Y = -9 + 7
Y = -9 + 7

Combine like terms: -9 + 7 = -2
Y = -2

Simplifying
Y = -2

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