(4a-7)+(-2a+9)=

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Solution for (4a-7)+(-2a+9)= equation:


Simplifying
(4a + -7) + (-2a + 9) = 0

Reorder the terms:
(-7 + 4a) + (-2a + 9) = 0

Remove parenthesis around (-7 + 4a)
-7 + 4a + (-2a + 9) = 0

Reorder the terms:
-7 + 4a + (9 + -2a) = 0

Remove parenthesis around (9 + -2a)
-7 + 4a + 9 + -2a = 0

Reorder the terms:
-7 + 9 + 4a + -2a = 0

Combine like terms: -7 + 9 = 2
2 + 4a + -2a = 0

Combine like terms: 4a + -2a = 2a
2 + 2a = 0

Solving
2 + 2a = 0

Solving for variable 'a'.

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

Add '-2' to each side of the equation.
2 + -2 + 2a = 0 + -2

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

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

Divide each side by '2'.
a = -1

Simplifying
a = -1

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