7-4a=2(a+2)

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


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

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

Solving
7 + -4a = 4 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
7 + -4a + -2a = 4 + 2a + -2a

Combine like terms: -4a + -2a = -6a
7 + -6a = 4 + 2a + -2a

Combine like terms: 2a + -2a = 0
7 + -6a = 4 + 0
7 + -6a = 4

Add '-7' to each side of the equation.
7 + -7 + -6a = 4 + -7

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

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

Divide each side by '-6'.
a = 0.5

Simplifying
a = 0.5

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