a+2b+4(-a-3b)-2(2a+5)=

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Solution for a+2b+4(-a-3b)-2(2a+5)= equation:


Simplifying
a + 2b + 4(-1a + -3b) + -2(2a + 5) = 0
a + 2b + (-1a * 4 + -3b * 4) + -2(2a + 5) = 0
a + 2b + (-4a + -12b) + -2(2a + 5) = 0

Reorder the terms:
a + 2b + -4a + -12b + -2(5 + 2a) = 0
a + 2b + -4a + -12b + (5 * -2 + 2a * -2) = 0
a + 2b + -4a + -12b + (-10 + -4a) = 0

Reorder the terms:
-10 + a + -4a + -4a + 2b + -12b = 0

Combine like terms: a + -4a = -3a
-10 + -3a + -4a + 2b + -12b = 0

Combine like terms: -3a + -4a = -7a
-10 + -7a + 2b + -12b = 0

Combine like terms: 2b + -12b = -10b
-10 + -7a + -10b = 0

Solving
-10 + -7a + -10b = 0

Solving for variable 'a'.

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

Add '10' to each side of the equation.
-10 + -7a + 10 + -10b = 0 + 10

Reorder the terms:
-10 + 10 + -7a + -10b = 0 + 10

Combine like terms: -10 + 10 = 0
0 + -7a + -10b = 0 + 10
-7a + -10b = 0 + 10

Combine like terms: 0 + 10 = 10
-7a + -10b = 10

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

Combine like terms: -10b + 10b = 0
-7a + 0 = 10 + 10b
-7a = 10 + 10b

Divide each side by '-7'.
a = -1.428571429 + -1.428571429b

Simplifying
a = -1.428571429 + -1.428571429b

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