1.2+d+0.4=9.7

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Solution for 1.2+d+0.4=9.7 equation: 


Simplifying
1.2 + d + 0.4 = 9.7

Reorder the terms:
1.2 + 0.4 + d = 9.7

Combine like terms: 1.2 + 0.4 = 1.6
1.6 + d = 9.7

Solving
1.6 + d = 9.7

Solving for variable 'd'.

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

Add '-1.6' to each side of the equation.
1.6 + -1.6 + d = 9.7 + -1.6

Combine like terms: 1.6 + -1.6 = 0.0
0.0 + d = 9.7 + -1.6
d = 9.7 + -1.6

Combine like terms: 9.7 + -1.6 = 8.1
d = 8.1

Simplifying
d = 8.1

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