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

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


Simplifying
3(a + 5) + 2(a + -4) = 0

Reorder the terms:
3(5 + a) + 2(a + -4) = 0
(5 * 3 + a * 3) + 2(a + -4) = 0
(15 + 3a) + 2(a + -4) = 0

Reorder the terms:
15 + 3a + 2(-4 + a) = 0
15 + 3a + (-4 * 2 + a * 2) = 0
15 + 3a + (-8 + 2a) = 0

Reorder the terms:
15 + -8 + 3a + 2a = 0

Combine like terms: 15 + -8 = 7
7 + 3a + 2a = 0

Combine like terms: 3a + 2a = 5a
7 + 5a = 0

Solving
7 + 5a = 0

Solving for variable 'a'.

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

Add '-7' to each side of the equation.
7 + -7 + 5a = 0 + -7

Combine like terms: 7 + -7 = 0
0 + 5a = 0 + -7
5a = 0 + -7

Combine like terms: 0 + -7 = -7
5a = -7

Divide each side by '5'.
a = -1.4

Simplifying
a = -1.4

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