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

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Solution for 4+2a-7=3(a+1)+a equation:


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

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

Combine like terms: 4 + -7 = -3
-3 + 2a = 3(a + 1) + a

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

Combine like terms: 3a + a = 4a
-3 + 2a = 3 + 4a

Solving
-3 + 2a = 3 + 4a

Solving for variable 'a'.

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

Add '-4a' to each side of the equation.
-3 + 2a + -4a = 3 + 4a + -4a

Combine like terms: 2a + -4a = -2a
-3 + -2a = 3 + 4a + -4a

Combine like terms: 4a + -4a = 0
-3 + -2a = 3 + 0
-3 + -2a = 3

Add '3' to each side of the equation.
-3 + 3 + -2a = 3 + 3

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

Combine like terms: 3 + 3 = 6
-2a = 6

Divide each side by '-2'.
a = -3

Simplifying
a = -3

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