2.1=0.07(a+1)

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Solution for 2.1=0.07(a+1) equation: 


Simplifying
2.1 = 0.07(a + 1)

Reorder the terms:
2.1 = 0.07(1 + a)
2.1 = (1 * 0.07 + a * 0.07)
2.1 = (0.07 + 0.07a)

Solving
2.1 = 0.07 + 0.07a

Solving for variable 'a'.

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

Add '-0.07a' to each side of the equation.
2.1 + -0.07a = 0.07 + 0.07a + -0.07a

Combine like terms: 0.07a + -0.07a = 0.00
2.1 + -0.07a = 0.07 + 0.00
2.1 + -0.07a = 0.07

Add '-2.1' to each side of the equation.
2.1 + -2.1 + -0.07a = 0.07 + -2.1

Combine like terms: 2.1 + -2.1 = 0.0
0.0 + -0.07a = 0.07 + -2.1
-0.07a = 0.07 + -2.1

Combine like terms: 0.07 + -2.1 = -2.03
-0.07a = -2.03

Divide each side by '-0.07'.
a = 29

Simplifying
a = 29

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