5[a-8]+7=3[a-7]

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Solution for 5[a-8]+7=3[a-7] equation:


Simplifying
5[a + -8] + 7 = 3[a + -7]

Reorder the terms:
5[-8 + a] + 7 = 3[a + -7]
[-8 * 5 + a * 5] + 7 = 3[a + -7]
[-40 + 5a] + 7 = 3[a + -7]

Reorder the terms:
-40 + 7 + 5a = 3[a + -7]

Combine like terms: -40 + 7 = -33
-33 + 5a = 3[a + -7]

Reorder the terms:
-33 + 5a = 3[-7 + a]
-33 + 5a = [-7 * 3 + a * 3]
-33 + 5a = [-21 + 3a]

Solving
-33 + 5a = -21 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
-33 + 5a + -3a = -21 + 3a + -3a

Combine like terms: 5a + -3a = 2a
-33 + 2a = -21 + 3a + -3a

Combine like terms: 3a + -3a = 0
-33 + 2a = -21 + 0
-33 + 2a = -21

Add '33' to each side of the equation.
-33 + 33 + 2a = -21 + 33

Combine like terms: -33 + 33 = 0
0 + 2a = -21 + 33
2a = -21 + 33

Combine like terms: -21 + 33 = 12
2a = 12

Divide each side by '2'.
a = 6

Simplifying
a = 6

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