(21a+5)-(4a+13)=11

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Solution for (21a+5)-(4a+13)=11 equation:


Simplifying
(21a + 5) + -1(4a + 13) = 11

Reorder the terms:
(5 + 21a) + -1(4a + 13) = 11

Remove parenthesis around (5 + 21a)
5 + 21a + -1(4a + 13) = 11

Reorder the terms:
5 + 21a + -1(13 + 4a) = 11
5 + 21a + (13 * -1 + 4a * -1) = 11
5 + 21a + (-13 + -4a) = 11

Reorder the terms:
5 + -13 + 21a + -4a = 11

Combine like terms: 5 + -13 = -8
-8 + 21a + -4a = 11

Combine like terms: 21a + -4a = 17a
-8 + 17a = 11

Solving
-8 + 17a = 11

Solving for variable 'a'.

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

Add '8' to each side of the equation.
-8 + 8 + 17a = 11 + 8

Combine like terms: -8 + 8 = 0
0 + 17a = 11 + 8
17a = 11 + 8

Combine like terms: 11 + 8 = 19
17a = 19

Divide each side by '17'.
a = 1.117647059

Simplifying
a = 1.117647059

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