7(a+1)=2[a-(3-7)]

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


Simplifying
7(a + 1) = 2[a + -1(3 + -7)]

Reorder the terms:
7(1 + a) = 2[a + -1(3 + -7)]
(1 * 7 + a * 7) = 2[a + -1(3 + -7)]
(7 + 7a) = 2[a + -1(3 + -7)]

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

Multiply -1 * -4
7 + 7a = 2[a + 4]

Reorder the terms:
7 + 7a = 2[4 + a]
7 + 7a = [4 * 2 + a * 2]
7 + 7a = [8 + 2a]

Solving
7 + 7a = 8 + 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 + 7a + -2a = 8 + 2a + -2a

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

Combine like terms: 2a + -2a = 0
7 + 5a = 8 + 0
7 + 5a = 8

Add '-7' to each side of the equation.
7 + -7 + 5a = 8 + -7

Combine like terms: 7 + -7 = 0
0 + 5a = 8 + -7
5a = 8 + -7

Combine like terms: 8 + -7 = 1
5a = 1

Divide each side by '5'.
a = 0.2

Simplifying
a = 0.2

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