2.2+0.21a=4.75-0.3a

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Solution for 2.2+0.21a=4.75-0.3a equation: 


Simplifying
2.2 + 0.21a = 4.75 + -0.3a

Solving
2.2 + 0.21a = 4.75 + -0.3a

Solving for variable 'a'.

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

Add '0.3a' to each side of the equation.
2.2 + 0.21a + 0.3a = 4.75 + -0.3a + 0.3a

Combine like terms: 0.21a + 0.3a = 0.51a
2.2 + 0.51a = 4.75 + -0.3a + 0.3a

Combine like terms: -0.3a + 0.3a = 0.0
2.2 + 0.51a = 4.75 + 0.0
2.2 + 0.51a = 4.75

Add '-2.2' to each side of the equation.
2.2 + -2.2 + 0.51a = 4.75 + -2.2

Combine like terms: 2.2 + -2.2 = 0.0
0.0 + 0.51a = 4.75 + -2.2
0.51a = 4.75 + -2.2

Combine like terms: 4.75 + -2.2 = 2.55
0.51a = 2.55

Divide each side by '0.51'.
a = 5

Simplifying
a = 5

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