Question

What is b
−2.9+ b/0.1 = − 39.9

Answer 1

Exact form

b=-37/10

Decimal form

b=-3.7

Mixed Number form

b+-3 7/10

Explanation:

-2.9+b/1/10+-39.9

-2.9+10b+-39.9

10b=-39.9+2.9

10b=-37

b=-37/10

Answer 2

b = - 1.09

Explanation:

- 2.9 + b ÷ 0.1 = - 39.9

- 2.9 + b ÷ 0.1 × 0.1 = - 39.9 × 0.1

- 2.9 + b = - 3.99

- 2.9 + 2.9 + b = - 3.99 + 2.9

b = - 1.09