4a+28=29a-72

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Solution for 4a+28=29a-72 equation:


Simplifying
4a + 28 = 29a + -72

Reorder the terms:
28 + 4a = 29a + -72

Reorder the terms:
28 + 4a = -72 + 29a

Solving
28 + 4a = -72 + 29a

Solving for variable 'a'.

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

Add '-29a' to each side of the equation.
28 + 4a + -29a = -72 + 29a + -29a

Combine like terms: 4a + -29a = -25a
28 + -25a = -72 + 29a + -29a

Combine like terms: 29a + -29a = 0
28 + -25a = -72 + 0
28 + -25a = -72

Add '-28' to each side of the equation.
28 + -28 + -25a = -72 + -28

Combine like terms: 28 + -28 = 0
0 + -25a = -72 + -28
-25a = -72 + -28

Combine like terms: -72 + -28 = -100
-25a = -100

Divide each side by '-25'.
a = 4

Simplifying
a = 4

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