18-2(2y+5)=7

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Solution for 18-2(2y+5)=7 equation:


Simplifying
18 + -2(2y + 5) = 7

Reorder the terms:
18 + -2(5 + 2y) = 7
18 + (5 * -2 + 2y * -2) = 7
18 + (-10 + -4y) = 7

Combine like terms: 18 + -10 = 8
8 + -4y = 7

Solving
8 + -4y = 7

Solving for variable 'y'.

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

Add '-8' to each side of the equation.
8 + -8 + -4y = 7 + -8

Combine like terms: 8 + -8 = 0
0 + -4y = 7 + -8
-4y = 7 + -8

Combine like terms: 7 + -8 = -1
-4y = -1

Divide each side by '-4'.
y = 0.25

Simplifying
y = 0.25

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