7(3a+20+10)=

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Solution for 7(3a+20+10)= equation:


Simplifying
7(3a + 20 + 10) = 0

Reorder the terms:
7(20 + 10 + 3a) = 0

Combine like terms: 20 + 10 = 30
7(30 + 3a) = 0
(30 * 7 + 3a * 7) = 0
(210 + 21a) = 0

Solving
210 + 21a = 0

Solving for variable 'a'.

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

Add '-210' to each side of the equation.
210 + -210 + 21a = 0 + -210

Combine like terms: 210 + -210 = 0
0 + 21a = 0 + -210
21a = 0 + -210

Combine like terms: 0 + -210 = -210
21a = -210

Divide each side by '21'.
a = -10

Simplifying
a = -10

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