X-7=.8(y+20)

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Solution for X-7=.8(y+20) equation:


Simplifying
X + -7 = 0.8(y + 20)

Reorder the terms:
-7 + X = 0.8(y + 20)

Reorder the terms:
-7 + X = 0.8(20 + y)
-7 + X = (20 * 0.8 + y * 0.8)
-7 + X = (16 + 0.8y)

Solving
-7 + X = 16 + 0.8y

Solving for variable 'X'.

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

Add '7' to each side of the equation.
-7 + 7 + X = 16 + 7 + 0.8y

Combine like terms: -7 + 7 = 0
0 + X = 16 + 7 + 0.8y
X = 16 + 7 + 0.8y

Combine like terms: 16 + 7 = 23
X = 23 + 0.8y

Simplifying
X = 23 + 0.8y

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