-1=18y-5(3y-7)

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Solution for -1=18y-5(3y-7) equation:


Simplifying
-1 = 18y + -5(3y + -7)

Reorder the terms:
-1 = 18y + -5(-7 + 3y)
-1 = 18y + (-7 * -5 + 3y * -5)
-1 = 18y + (35 + -15y)

Reorder the terms:
-1 = 35 + 18y + -15y

Combine like terms: 18y + -15y = 3y
-1 = 35 + 3y

Solving
-1 = 35 + 3y

Solving for variable 'y'.

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

Add '-3y' to each side of the equation.
-1 + -3y = 35 + 3y + -3y

Combine like terms: 3y + -3y = 0
-1 + -3y = 35 + 0
-1 + -3y = 35

Add '1' to each side of the equation.
-1 + 1 + -3y = 35 + 1

Combine like terms: -1 + 1 = 0
0 + -3y = 35 + 1
-3y = 35 + 1

Combine like terms: 35 + 1 = 36
-3y = 36

Divide each side by '-3'.
y = -12

Simplifying
y = -12

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