(2a+3)-(4a+8)=7

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Solution for (2a+3)-(4a+8)=7 equation:


Simplifying
(2a + 3) + -1(4a + 8) = 7

Reorder the terms:
(3 + 2a) + -1(4a + 8) = 7

Remove parenthesis around (3 + 2a)
3 + 2a + -1(4a + 8) = 7

Reorder the terms:
3 + 2a + -1(8 + 4a) = 7
3 + 2a + (8 * -1 + 4a * -1) = 7
3 + 2a + (-8 + -4a) = 7

Reorder the terms:
3 + -8 + 2a + -4a = 7

Combine like terms: 3 + -8 = -5
-5 + 2a + -4a = 7

Combine like terms: 2a + -4a = -2a
-5 + -2a = 7

Solving
-5 + -2a = 7

Solving for variable 'a'.

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

Add '5' to each side of the equation.
-5 + 5 + -2a = 7 + 5

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

Combine like terms: 7 + 5 = 12
-2a = 12

Divide each side by '-2'.
a = -6

Simplifying
a = -6

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