Question

1.2+d+0.4=9.7 solve plez and thank you the first to answer right will be brainiest

Answer 1

d=8.1

1.2+d+0.4=9.7

Add 0.4 and 1.2

1.6+d=9.7

-1.6      -1.6

Subtract 1.6 from both sides

d=8.1