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-3/10+d=9/10
We simplify the equation to the form, which is simple to understand
-3/10+d=9/10
Simplifying:
-0.3+d=9/10
Simplifying:
-0.3+d=0.9
We move all terms containing d to the left and all other terms to the right.
+1d=0.9 + 0.3
We simplify left and right side of the equation.
+1d=+1.2
We divide both sides of the equation by 1 to get d.
d=1.2
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