5(7a-4)-42a+7(-3a+8)-16+7a=0

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Solution for 5(7a-4)-42a+7(-3a+8)-16+7a=0 equation:


Simplifying
5(7a + -4) + -42a + 7(-3a + 8) + -16 + 7a = 0

Reorder the terms:
5(-4 + 7a) + -42a + 7(-3a + 8) + -16 + 7a = 0
(-4 * 5 + 7a * 5) + -42a + 7(-3a + 8) + -16 + 7a = 0
(-20 + 35a) + -42a + 7(-3a + 8) + -16 + 7a = 0

Reorder the terms:
-20 + 35a + -42a + 7(8 + -3a) + -16 + 7a = 0
-20 + 35a + -42a + (8 * 7 + -3a * 7) + -16 + 7a = 0
-20 + 35a + -42a + (56 + -21a) + -16 + 7a = 0

Reorder the terms:
-20 + 56 + -16 + 35a + -42a + -21a + 7a = 0

Combine like terms: -20 + 56 = 36
36 + -16 + 35a + -42a + -21a + 7a = 0

Combine like terms: 36 + -16 = 20
20 + 35a + -42a + -21a + 7a = 0

Combine like terms: 35a + -42a = -7a
20 + -7a + -21a + 7a = 0

Combine like terms: -7a + -21a = -28a
20 + -28a + 7a = 0

Combine like terms: -28a + 7a = -21a
20 + -21a = 0

Solving
20 + -21a = 0

Solving for variable 'a'.

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

Add '-20' to each side of the equation.
20 + -20 + -21a = 0 + -20

Combine like terms: 20 + -20 = 0
0 + -21a = 0 + -20
-21a = 0 + -20

Combine like terms: 0 + -20 = -20
-21a = -20

Divide each side by '-21'.
a = 0.9523809524

Simplifying
a = 0.9523809524

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