3a-50=7a-80

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Solution for 3a-50=7a-80 equation:


Simplifying
3a + -50 = 7a + -80

Reorder the terms:
-50 + 3a = 7a + -80

Reorder the terms:
-50 + 3a = -80 + 7a

Solving
-50 + 3a = -80 + 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.
-50 + 3a + -7a = -80 + 7a + -7a

Combine like terms: 3a + -7a = -4a
-50 + -4a = -80 + 7a + -7a

Combine like terms: 7a + -7a = 0
-50 + -4a = -80 + 0
-50 + -4a = -80

Add '50' to each side of the equation.
-50 + 50 + -4a = -80 + 50

Combine like terms: -50 + 50 = 0
0 + -4a = -80 + 50
-4a = -80 + 50

Combine like terms: -80 + 50 = -30
-4a = -30

Divide each side by '-4'.
a = 7.5

Simplifying
a = 7.5

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