2.0-3.5=2.5+.05(5a-7a)

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Solution for 2.0-3.5=2.5+.05(5a-7a) equation:


Simplifying
2.0 + -3.5 = 2.5 + 0.05(5a + -7a)

Combine like terms: 2.0 + -3.5 = -1.5
-1.5 = 2.5 + 0.05(5a + -7a)

Combine like terms: 5a + -7a = -2a
-1.5 = 2.5 + 0.05(-2a)

Remove parenthesis around (-2a)
-1.5 = 2.5 + 0.05 * -2a

Multiply 0.05 * -2
-1.5 = 2.5 + -0.1a

Solving
-1.5 = 2.5 + -0.1a

Solving for variable 'a'.

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

Add '0.1a' to each side of the equation.
-1.5 + 0.1a = 2.5 + -0.1a + 0.1a

Combine like terms: -0.1a + 0.1a = 0.0
-1.5 + 0.1a = 2.5 + 0.0
-1.5 + 0.1a = 2.5

Add '1.5' to each side of the equation.
-1.5 + 1.5 + 0.1a = 2.5 + 1.5

Combine like terms: -1.5 + 1.5 = 0.0
0.0 + 0.1a = 2.5 + 1.5
0.1a = 2.5 + 1.5

Combine like terms: 2.5 + 1.5 = 4
0.1a = 4

Divide each side by '0.1'.
a = 40

Simplifying
a = 40

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