4a-13=7a+20

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Solution for 4a-13=7a+20 equation:


Simplifying
4a + -13 = 7a + 20

Reorder the terms:
-13 + 4a = 7a + 20

Reorder the terms:
-13 + 4a = 20 + 7a

Solving
-13 + 4a = 20 + 7a

Solving for variable 'a'.

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

Add '-7a' to each side of the equation.
-13 + 4a + -7a = 20 + 7a + -7a

Combine like terms: 4a + -7a = -3a
-13 + -3a = 20 + 7a + -7a

Combine like terms: 7a + -7a = 0
-13 + -3a = 20 + 0
-13 + -3a = 20

Add '13' to each side of the equation.
-13 + 13 + -3a = 20 + 13

Combine like terms: -13 + 13 = 0
0 + -3a = 20 + 13
-3a = 20 + 13

Combine like terms: 20 + 13 = 33
-3a = 33

Divide each side by '-3'.
a = -11

Simplifying
a = -11

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