0.06a+0.07(a+400)=67

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Solution for 0.06a+0.07(a+400)=67 equation:


Simplifying
0.06a + 0.07(a + 400) = 67

Reorder the terms:
0.06a + 0.07(400 + a) = 67
0.06a + (400 * 0.07 + a * 0.07) = 67
0.06a + (28 + 0.07a) = 67

Reorder the terms:
28 + 0.06a + 0.07a = 67

Combine like terms: 0.06a + 0.07a = 0.13a
28 + 0.13a = 67

Solving
28 + 0.13a = 67

Solving for variable 'a'.

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

Add '-28' to each side of the equation.
28 + -28 + 0.13a = 67 + -28

Combine like terms: 28 + -28 = 0
0 + 0.13a = 67 + -28
0.13a = 67 + -28

Combine like terms: 67 + -28 = 39
0.13a = 39

Divide each side by '0.13'.
a = 300

Simplifying
a = 300

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