Question

–9.45 + 5.4d + 9.01 = –0.1d + 0.66

Answer 1

1.838181818181818

Explanation:

5.4d + 0.1d = 0.66 + 9.45

5.5d = 10.11

d = 10.11 / 5.5

d = 1.838181818181818

Answer 2

d= 0.2

Explanation:

–9.45 + 5.4d + 9.01 = –0.1d + 0.66

STEP 1:

Combine Like Terms:

–9.45 + 5.4d + 9.01 = –0.1d + 0.66

–9.45 + 9.01 = -0.44

-0.44+5.4d=-0.1d+0.66

STEP 2:

Add -0.44 from both sides:

-0.44+5.4d=-0.1d+0.66

-0.44+0.44+5.4d=-0.1d+0.66 +0.44

5.4d=-0.1d+0.66+0.44

STEP 3:

Add:

5.4d=-0.1d+0.66+0.44

0.66+0.44= 1.1

5.4d=-0.1d+1.1

STEP 4:

Add 0.1d from both sides:

5.4d=-0.1d+1.1

5.4d=-0.1d+1.1

5.4d+0.1d=-0.1d+0.1d+1.1

5.4d+0.1d=5.5d

5.5d=1.1

STEP 5:

Divide by the coefficient which is 5.5:

5.5d=1.1

d= 0.2

I hope this helps :)