10-0.3(y-7)=0.1(8y-7)

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Solution for 10-0.3(y-7)=0.1(8y-7) equation:


Simplifying
10 + -0.3(y + -7) = 0.1(8y + -7)

Reorder the terms:
10 + -0.3(-7 + y) = 0.1(8y + -7)
10 + (-7 * -0.3 + y * -0.3) = 0.1(8y + -7)
10 + (2.1 + -0.3y) = 0.1(8y + -7)

Combine like terms: 10 + 2.1 = 12.1
12.1 + -0.3y = 0.1(8y + -7)

Reorder the terms:
12.1 + -0.3y = 0.1(-7 + 8y)
12.1 + -0.3y = (-7 * 0.1 + 8y * 0.1)
12.1 + -0.3y = (-0.7 + 0.8y)

Solving
12.1 + -0.3y = -0.7 + 0.8y

Solving for variable 'y'.

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

Add '-0.8y' to each side of the equation.
12.1 + -0.3y + -0.8y = -0.7 + 0.8y + -0.8y

Combine like terms: -0.3y + -0.8y = -1.1y
12.1 + -1.1y = -0.7 + 0.8y + -0.8y

Combine like terms: 0.8y + -0.8y = 0.0
12.1 + -1.1y = -0.7 + 0.0
12.1 + -1.1y = -0.7

Add '-12.1' to each side of the equation.
12.1 + -12.1 + -1.1y = -0.7 + -12.1

Combine like terms: 12.1 + -12.1 = 0.0
0.0 + -1.1y = -0.7 + -12.1
-1.1y = -0.7 + -12.1

Combine like terms: -0.7 + -12.1 = -12.8
-1.1y = -12.8

Divide each side by '-1.1'.
y = 11.63636364

Simplifying
y = 11.63636364

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