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

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


Simplifying
(-1y + 4) + -1(-3y + 7) = 0

Reorder the terms:
(4 + -1y) + -1(-3y + 7) = 0

Remove parenthesis around (4 + -1y)
4 + -1y + -1(-3y + 7) = 0

Reorder the terms:
4 + -1y + -1(7 + -3y) = 0
4 + -1y + (7 * -1 + -3y * -1) = 0
4 + -1y + (-7 + 3y) = 0

Reorder the terms:
4 + -7 + -1y + 3y = 0

Combine like terms: 4 + -7 = -3
-3 + -1y + 3y = 0

Combine like terms: -1y + 3y = 2y
-3 + 2y = 0

Solving
-3 + 2y = 0

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 + 2y = 0 + 3

Combine like terms: -3 + 3 = 0
0 + 2y = 0 + 3
2y = 0 + 3

Combine like terms: 0 + 3 = 3
2y = 3

Divide each side by '2'.
y = 1.5

Simplifying
y = 1.5

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