3(a-4)+4(a+1)=

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Solution for 3(a-4)+4(a+1)= equation:


Simplifying
3(a + -4) + 4(a + 1) = 0

Reorder the terms:
3(-4 + a) + 4(a + 1) = 0
(-4 * 3 + a * 3) + 4(a + 1) = 0
(-12 + 3a) + 4(a + 1) = 0

Reorder the terms:
-12 + 3a + 4(1 + a) = 0
-12 + 3a + (1 * 4 + a * 4) = 0
-12 + 3a + (4 + 4a) = 0

Reorder the terms:
-12 + 4 + 3a + 4a = 0

Combine like terms: -12 + 4 = -8
-8 + 3a + 4a = 0

Combine like terms: 3a + 4a = 7a
-8 + 7a = 0

Solving
-8 + 7a = 0

Solving for variable 'a'.

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

Add '8' to each side of the equation.
-8 + 8 + 7a = 0 + 8

Combine like terms: -8 + 8 = 0
0 + 7a = 0 + 8
7a = 0 + 8

Combine like terms: 0 + 8 = 8
7a = 8

Divide each side by '7'.
a = 1.142857143

Simplifying
a = 1.142857143

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