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

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


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

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

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

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

Reorder the terms:
-13 + 3y = 4(-7 + y)
-13 + 3y = (-7 * 4 + y * 4)
-13 + 3y = (-28 + 4y)

Solving
-13 + 3y = -28 + 4y

Solving for variable 'y'.

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

Add '-4y' to each side of the equation.
-13 + 3y + -4y = -28 + 4y + -4y

Combine like terms: 3y + -4y = -1y
-13 + -1y = -28 + 4y + -4y

Combine like terms: 4y + -4y = 0
-13 + -1y = -28 + 0
-13 + -1y = -28

Add '13' to each side of the equation.
-13 + 13 + -1y = -28 + 13

Combine like terms: -13 + 13 = 0
0 + -1y = -28 + 13
-1y = -28 + 13

Combine like terms: -28 + 13 = -15
-1y = -15

Divide each side by '-1'.
y = 15

Simplifying
y = 15

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