Welcome to Westonci.ca, your go-to destination for finding answers to all your questions. Join our expert community today! Get immediate and reliable solutions to your questions from a knowledgeable community of professionals on our platform. Experience the convenience of finding accurate answers to your questions from knowledgeable experts on our platform.

What is the solution for r in the equation?
0.4r-0.13-0.7r=3r-5.74
a. r=2.1
b. r=1.7
c. r=-1.7
d. r=-2.1

Sagot :

Answer:

b

Step-by-step explanation:

given the equation

0.4r - 0.13 - 0.7r = 3r - 5.74 ( simplify left side )

- 0.3 r - 0.13 = 3r - 5.74 ( add 0.3r to both sides )

- 0.13 = 3.3r - 5.74 ( add 5.74 to both sides )

5.61 = 3.3r ( divide both sides by 3.3 )

[tex]\frac{5.61}{3.3}[/tex] = r , then

r = 1.7