0.07a+0.12(a+400)=143

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Solution for 0.07a+0.12(a+400)=143 equation: 


Simplifying
0.07a + 0.12(a + 400) = 143

Reorder the terms:
0.07a + 0.12(400 + a) = 143
0.07a + (400 * 0.12 + a * 0.12) = 143
0.07a + (48 + 0.12a) = 143

Reorder the terms:
48 + 0.07a + 0.12a = 143

Combine like terms: 0.07a + 0.12a = 0.19a
48 + 0.19a = 143

Solving
48 + 0.19a = 143

Solving for variable 'a'.

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

Add '-48' to each side of the equation.
48 + -48 + 0.19a = 143 + -48

Combine like terms: 48 + -48 = 0
0 + 0.19a = 143 + -48
0.19a = 143 + -48

Combine like terms: 143 + -48 = 95
0.19a = 95

Divide each side by '0.19'.
a = 500

Simplifying
a = 500

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