-4(.75)-4y=21

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Solution for -4(.75)-4y=21 equation:


Simplifying
-4(0.75) + -4y = 21

Multiply -4 * 0.75
-3 + -4y = 21

Solving
-3 + -4y = 21

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 + -4y = 21 + 3

Combine like terms: -3 + 3 = 0
0 + -4y = 21 + 3
-4y = 21 + 3

Combine like terms: 21 + 3 = 24
-4y = 24

Divide each side by '-4'.
y = -6

Simplifying
y = -6

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