.45-.35(20-a)=.02(50)

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Solution for .45-.35(20-a)=.02(50) equation:


Simplifying
0.45 + -0.35(20 + -1a) = 0.02(50)
0.45 + (20 * -0.35 + -1a * -0.35) = 0.02(50)
0.45 + (-7 + 0.35a) = 0.02(50)

Combine like terms: 0.45 + -7 = -6.55
-6.55 + 0.35a = 0.02(50)

Multiply 0.02 * 50
-6.55 + 0.35a = 1

Solving
-6.55 + 0.35a = 1

Solving for variable 'a'.

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

Add '6.55' to each side of the equation.
-6.55 + 6.55 + 0.35a = 1 + 6.55

Combine like terms: -6.55 + 6.55 = 0.00
0.00 + 0.35a = 1 + 6.55
0.35a = 1 + 6.55

Combine like terms: 1 + 6.55 = 7.55
0.35a = 7.55

Divide each side by '0.35'.
a = 21.57142857

Simplifying
a = 21.57142857

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