7y-4(y+5)=1

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Solution for 7y-4(y+5)=1 equation:


Simplifying
7y + -4(y + 5) = 1

Reorder the terms:
7y + -4(5 + y) = 1
7y + (5 * -4 + y * -4) = 1
7y + (-20 + -4y) = 1

Reorder the terms:
-20 + 7y + -4y = 1

Combine like terms: 7y + -4y = 3y
-20 + 3y = 1

Solving
-20 + 3y = 1

Solving for variable 'y'.

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

Add '20' to each side of the equation.
-20 + 20 + 3y = 1 + 20

Combine like terms: -20 + 20 = 0
0 + 3y = 1 + 20
3y = 1 + 20

Combine like terms: 1 + 20 = 21
3y = 21

Divide each side by '3'.
y = 7

Simplifying
y = 7

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