7(3a-1)+43=3(5a+4)

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Solution for 7(3a-1)+43=3(5a+4) equation:


Simplifying
7(3a + -1) + 43 = 3(5a + 4)

Reorder the terms:
7(-1 + 3a) + 43 = 3(5a + 4)
(-1 * 7 + 3a * 7) + 43 = 3(5a + 4)
(-7 + 21a) + 43 = 3(5a + 4)

Reorder the terms:
-7 + 43 + 21a = 3(5a + 4)

Combine like terms: -7 + 43 = 36
36 + 21a = 3(5a + 4)

Reorder the terms:
36 + 21a = 3(4 + 5a)
36 + 21a = (4 * 3 + 5a * 3)
36 + 21a = (12 + 15a)

Solving
36 + 21a = 12 + 15a

Solving for variable 'a'.

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

Add '-15a' to each side of the equation.
36 + 21a + -15a = 12 + 15a + -15a

Combine like terms: 21a + -15a = 6a
36 + 6a = 12 + 15a + -15a

Combine like terms: 15a + -15a = 0
36 + 6a = 12 + 0
36 + 6a = 12

Add '-36' to each side of the equation.
36 + -36 + 6a = 12 + -36

Combine like terms: 36 + -36 = 0
0 + 6a = 12 + -36
6a = 12 + -36

Combine like terms: 12 + -36 = -24
6a = -24

Divide each side by '6'.
a = -4

Simplifying
a = -4

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