1-2a-8a=-5(a+5)-2(a-1)

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Solution for 1-2a-8a=-5(a+5)-2(a-1) equation:


Simplifying
1 + -2a + -8a = -5(a + 5) + -2(a + -1)

Combine like terms: -2a + -8a = -10a
1 + -10a = -5(a + 5) + -2(a + -1)

Reorder the terms:
1 + -10a = -5(5 + a) + -2(a + -1)
1 + -10a = (5 * -5 + a * -5) + -2(a + -1)
1 + -10a = (-25 + -5a) + -2(a + -1)

Reorder the terms:
1 + -10a = -25 + -5a + -2(-1 + a)
1 + -10a = -25 + -5a + (-1 * -2 + a * -2)
1 + -10a = -25 + -5a + (2 + -2a)

Reorder the terms:
1 + -10a = -25 + 2 + -5a + -2a

Combine like terms: -25 + 2 = -23
1 + -10a = -23 + -5a + -2a

Combine like terms: -5a + -2a = -7a
1 + -10a = -23 + -7a

Solving
1 + -10a = -23 + -7a

Solving for variable 'a'.

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

Add '7a' to each side of the equation.
1 + -10a + 7a = -23 + -7a + 7a

Combine like terms: -10a + 7a = -3a
1 + -3a = -23 + -7a + 7a

Combine like terms: -7a + 7a = 0
1 + -3a = -23 + 0
1 + -3a = -23

Add '-1' to each side of the equation.
1 + -1 + -3a = -23 + -1

Combine like terms: 1 + -1 = 0
0 + -3a = -23 + -1
-3a = -23 + -1

Combine like terms: -23 + -1 = -24
-3a = -24

Divide each side by '-3'.
a = 8

Simplifying
a = 8

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