3a-(a-7)+3=

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


Simplifying
3a + -1(a + -7) + 3 = 0

Reorder the terms:
3a + -1(-7 + a) + 3 = 0
3a + (-7 * -1 + a * -1) + 3 = 0
3a + (7 + -1a) + 3 = 0

Reorder the terms:
7 + 3 + 3a + -1a = 0

Combine like terms: 7 + 3 = 10
10 + 3a + -1a = 0

Combine like terms: 3a + -1a = 2a
10 + 2a = 0

Solving
10 + 2a = 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 + -10 + 2a = 0 + -10

Combine like terms: 10 + -10 = 0
0 + 2a = 0 + -10
2a = 0 + -10

Combine like terms: 0 + -10 = -10
2a = -10

Divide each side by '2'.
a = -5

Simplifying
a = -5

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