7y-42(0)+7=0

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Solution for 7y-42(0)+7=0 equation:


Simplifying
7y + -42(0) + 7 = 0

Multiply -42 * 0
7y + 0 + 7 = 0

Anything times zero is zero.
7y + 0 + 7 = 0

Reorder the terms:
0 + 7 + 7y = 0

Combine like terms: 0 + 7 = 7
7 + 7y = 0

Solving
7 + 7y = 0

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 + 7y = 0 + -7

Combine like terms: 7 + -7 = 0
0 + 7y = 0 + -7
7y = 0 + -7

Combine like terms: 0 + -7 = -7
7y = -7

Divide each side by '7'.
y = -1

Simplifying
y = -1

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