mishacollinstwi
mishacollinstwi mishacollinstwi
  • 03-07-2018
  • Mathematics
contestada

What value of r makes –6r + 2(r + 2) – 5 = -20 true?

Respuesta :

Аноним Аноним
  • 03-07-2018
Hello!

To find the answer we need to solve for r. First we undo the parentheses.

-6r+2r+4-5=-20

Now we combine like terms.

-4r-1=-20

We add one to both sides.

-4r=-19

Divide both sides by -4.

r=4.75

I hope this helps!
Answer Link

Otras preguntas

two identical freight cars roll without friction towards each other on a level track. one car rolls 2 m/s the other 1 m/s. after the cars collide they couple an
If the speed of an object is tripled, its kinetic energy will be
Solving systems by elimination: 2x + 4y = -4 3x + 5y = -3 Please show me your work so I can do the rest myself. Thanks!
A pound of seedless red grapes costs $2.75. Drew must spend less than $9.35 on a bunch of seedless red grapes.Inequality:Solution:Interpretation:
Rewrite the function c(x) =9(x+3) using the distributive property
What is the numerator or denominator of 4/5
What two major processes are involved in the oxygen cycle?
What three islands are located off the East African coast
Rewrite the function c(x) =9(x+3) using the distributive property
How does transpiration play a  role in the water cycle ?