6(7a+4)-4a=100

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Solution for 6(7a+4)-4a=100 equation:


Simplifying
6(7a + 4) + -4a = 100

Reorder the terms:
6(4 + 7a) + -4a = 100
(4 * 6 + 7a * 6) + -4a = 100
(24 + 42a) + -4a = 100

Combine like terms: 42a + -4a = 38a
24 + 38a = 100

Solving
24 + 38a = 100

Solving for variable 'a'.

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

Add '-24' to each side of the equation.
24 + -24 + 38a = 100 + -24

Combine like terms: 24 + -24 = 0
0 + 38a = 100 + -24
38a = 100 + -24

Combine like terms: 100 + -24 = 76
38a = 76

Divide each side by '38'.
a = 2

Simplifying
a = 2

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