(4a-7)-(3a+6)=

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Solution for (4a-7)-(3a+6)= equation:


Simplifying
(4a + -7) + -1(3a + 6) = 0

Reorder the terms:
(-7 + 4a) + -1(3a + 6) = 0

Remove parenthesis around (-7 + 4a)
-7 + 4a + -1(3a + 6) = 0

Reorder the terms:
-7 + 4a + -1(6 + 3a) = 0
-7 + 4a + (6 * -1 + 3a * -1) = 0
-7 + 4a + (-6 + -3a) = 0

Reorder the terms:
-7 + -6 + 4a + -3a = 0

Combine like terms: -7 + -6 = -13
-13 + 4a + -3a = 0

Combine like terms: 4a + -3a = 1a
-13 + 1a = 0

Solving
-13 + 1a = 0

Solving for variable 'a'.

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

Add '13' to each side of the equation.
-13 + 13 + 1a = 0 + 13

Combine like terms: -13 + 13 = 0
0 + 1a = 0 + 13
1a = 0 + 13

Combine like terms: 0 + 13 = 13
1a = 13

Divide each side by '1'.
a = 13

Simplifying
a = 13

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