y+2=.8(x-9)

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Solution for y+2=.8(x-9) equation:


Simplifying
y + 2 = 0.8(x + -9)

Reorder the terms:
2 + y = 0.8(x + -9)

Reorder the terms:
2 + y = 0.8(-9 + x)
2 + y = (-9 * 0.8 + x * 0.8)
2 + y = (-7.2 + 0.8x)

Solving
2 + y = -7.2 + 0.8x

Solving for variable 'y'.

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

Add '-2' to each side of the equation.
2 + -2 + y = -7.2 + -2 + 0.8x

Combine like terms: 2 + -2 = 0
0 + y = -7.2 + -2 + 0.8x
y = -7.2 + -2 + 0.8x

Combine like terms: -7.2 + -2 = -9.2
y = -9.2 + 0.8x

Simplifying
y = -9.2 + 0.8x

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