5a+2(4a+5)=7a

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Solution for 5a+2(4a+5)=7a equation:


Simplifying
5a + 2(4a + 5) = 7a

Reorder the terms:
5a + 2(5 + 4a) = 7a
5a + (5 * 2 + 4a * 2) = 7a
5a + (10 + 8a) = 7a

Reorder the terms:
10 + 5a + 8a = 7a

Combine like terms: 5a + 8a = 13a
10 + 13a = 7a

Solving
10 + 13a = 7a

Solving for variable 'a'.

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

Add '-7a' to each side of the equation.
10 + 13a + -7a = 7a + -7a

Combine like terms: 13a + -7a = 6a
10 + 6a = 7a + -7a

Combine like terms: 7a + -7a = 0
10 + 6a = 0

Add '-10' to each side of the equation.
10 + -10 + 6a = 0 + -10

Combine like terms: 10 + -10 = 0
0 + 6a = 0 + -10
6a = 0 + -10

Combine like terms: 0 + -10 = -10
6a = -10

Divide each side by '6'.
a = -1.666666667

Simplifying
a = -1.666666667

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