3(a+4a)-2a+7=

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Solution for 3(a+4a)-2a+7= equation:


Simplifying
3(a + 4a) + -2a + 7 = 0

Combine like terms: a + 4a = 5a
3(5a) + -2a + 7 = 0

Remove parenthesis around (5a)
3 * 5a + -2a + 7 = 0

Multiply 3 * 5
15a + -2a + 7 = 0

Reorder the terms:
7 + 15a + -2a = 0

Combine like terms: 15a + -2a = 13a
7 + 13a = 0

Solving
7 + 13a = 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 + 13a = 0 + -7

Combine like terms: 7 + -7 = 0
0 + 13a = 0 + -7
13a = 0 + -7

Combine like terms: 0 + -7 = -7
13a = -7

Divide each side by '13'.
a = -0.5384615385

Simplifying
a = -0.5384615385

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