4a-100=3a-61

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Solution for 4a-100=3a-61 equation:


Simplifying
4a + -100 = 3a + -61

Reorder the terms:
-100 + 4a = 3a + -61

Reorder the terms:
-100 + 4a = -61 + 3a

Solving
-100 + 4a = -61 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
-100 + 4a + -3a = -61 + 3a + -3a

Combine like terms: 4a + -3a = 1a
-100 + 1a = -61 + 3a + -3a

Combine like terms: 3a + -3a = 0
-100 + 1a = -61 + 0
-100 + 1a = -61

Add '100' to each side of the equation.
-100 + 100 + 1a = -61 + 100

Combine like terms: -100 + 100 = 0
0 + 1a = -61 + 100
1a = -61 + 100

Combine like terms: -61 + 100 = 39
1a = 39

Divide each side by '1'.
a = 39

Simplifying
a = 39

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