7a+5b-4=180

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Solution for 7a+5b-4=180 equation:


Simplifying
7a + 5b + -4 = 180

Reorder the terms:
-4 + 7a + 5b = 180

Solving
-4 + 7a + 5b = 180

Solving for variable 'a'.

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

Add '4' to each side of the equation.
-4 + 7a + 4 + 5b = 180 + 4

Reorder the terms:
-4 + 4 + 7a + 5b = 180 + 4

Combine like terms: -4 + 4 = 0
0 + 7a + 5b = 180 + 4
7a + 5b = 180 + 4

Combine like terms: 180 + 4 = 184
7a + 5b = 184

Add '-5b' to each side of the equation.
7a + 5b + -5b = 184 + -5b

Combine like terms: 5b + -5b = 0
7a + 0 = 184 + -5b
7a = 184 + -5b

Divide each side by '7'.
a = 26.28571429 + -0.7142857143b

Simplifying
a = 26.28571429 + -0.7142857143b

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