4(6a-7)-(3a-5)=40

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Solution for 4(6a-7)-(3a-5)=40 equation:


Simplifying
4(6a + -7) + -1(3a + -5) = 40

Reorder the terms:
4(-7 + 6a) + -1(3a + -5) = 40
(-7 * 4 + 6a * 4) + -1(3a + -5) = 40
(-28 + 24a) + -1(3a + -5) = 40

Reorder the terms:
-28 + 24a + -1(-5 + 3a) = 40
-28 + 24a + (-5 * -1 + 3a * -1) = 40
-28 + 24a + (5 + -3a) = 40

Reorder the terms:
-28 + 5 + 24a + -3a = 40

Combine like terms: -28 + 5 = -23
-23 + 24a + -3a = 40

Combine like terms: 24a + -3a = 21a
-23 + 21a = 40

Solving
-23 + 21a = 40

Solving for variable 'a'.

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

Add '23' to each side of the equation.
-23 + 23 + 21a = 40 + 23

Combine like terms: -23 + 23 = 0
0 + 21a = 40 + 23
21a = 40 + 23

Combine like terms: 40 + 23 = 63
21a = 63

Divide each side by '21'.
a = 3

Simplifying
a = 3

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