2.1=5.3-0.8x

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Solution for 2.1=5.3-0.8x equation: 


Simplifying
2.1 = 5.3 + -0.8x

Solving
2.1 = 5.3 + -0.8x

Solving for variable 'x'.

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

Add '0.8x' to each side of the equation.
2.1 + 0.8x = 5.3 + -0.8x + 0.8x

Combine like terms: -0.8x + 0.8x = 0.0
2.1 + 0.8x = 5.3 + 0.0
2.1 + 0.8x = 5.3

Add '-2.1' to each side of the equation.
2.1 + -2.1 + 0.8x = 5.3 + -2.1

Combine like terms: 2.1 + -2.1 = 0.0
0.0 + 0.8x = 5.3 + -2.1
0.8x = 5.3 + -2.1

Combine like terms: 5.3 + -2.1 = 3.2
0.8x = 3.2

Divide each side by '0.8'.
x = 4

Simplifying
x = 4

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