3-7+8y-3a-10y+15-a=

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Solution for 3-7+8y-3a-10y+15-a= equation:


Simplifying
3 + -7 + 8y + -3a + -10y + 15 + -1a = 0

Reorder the terms:
3 + -7 + 15 + -3a + -1a + 8y + -10y = 0

Combine like terms: 3 + -7 = -4
-4 + 15 + -3a + -1a + 8y + -10y = 0

Combine like terms: -4 + 15 = 11
11 + -3a + -1a + 8y + -10y = 0

Combine like terms: -3a + -1a = -4a
11 + -4a + 8y + -10y = 0

Combine like terms: 8y + -10y = -2y
11 + -4a + -2y = 0

Solving
11 + -4a + -2y = 0

Solving for variable 'a'.

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

Add '-11' to each side of the equation.
11 + -4a + -11 + -2y = 0 + -11

Reorder the terms:
11 + -11 + -4a + -2y = 0 + -11

Combine like terms: 11 + -11 = 0
0 + -4a + -2y = 0 + -11
-4a + -2y = 0 + -11

Combine like terms: 0 + -11 = -11
-4a + -2y = -11

Add '2y' to each side of the equation.
-4a + -2y + 2y = -11 + 2y

Combine like terms: -2y + 2y = 0
-4a + 0 = -11 + 2y
-4a = -11 + 2y

Divide each side by '-4'.
a = 2.75 + -0.5y

Simplifying
a = 2.75 + -0.5y

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