4(5a+3)-5(2a+9)=

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Solution for 4(5a+3)-5(2a+9)= equation:


Simplifying
4(5a + 3) + -5(2a + 9) = 0

Reorder the terms:
4(3 + 5a) + -5(2a + 9) = 0
(3 * 4 + 5a * 4) + -5(2a + 9) = 0
(12 + 20a) + -5(2a + 9) = 0

Reorder the terms:
12 + 20a + -5(9 + 2a) = 0
12 + 20a + (9 * -5 + 2a * -5) = 0
12 + 20a + (-45 + -10a) = 0

Reorder the terms:
12 + -45 + 20a + -10a = 0

Combine like terms: 12 + -45 = -33
-33 + 20a + -10a = 0

Combine like terms: 20a + -10a = 10a
-33 + 10a = 0

Solving
-33 + 10a = 0

Solving for variable 'a'.

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

Add '33' to each side of the equation.
-33 + 33 + 10a = 0 + 33

Combine like terms: -33 + 33 = 0
0 + 10a = 0 + 33
10a = 0 + 33

Combine like terms: 0 + 33 = 33
10a = 33

Divide each side by '10'.
a = 3.3

Simplifying
a = 3.3

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