Iwoodin21
Iwoodin21 Iwoodin21
  • 19-10-2020
  • Mathematics
contestada

Simplify the expression.

7(a + 3b) + 2(a - b)

A.18a + 18b

B.9a + 23b

C.9(2a + 2b)

D.9a + 19b

Respuesta :

aaliyahomitogun
aaliyahomitogun aaliyahomitogun
  • 19-10-2020

Answer:

D.9a+19b

Step-by-step explanation:

7(a+3b)+2(a-b)

7*a=7a

7*3b=21b

2*a=2a

2*-b=-2b

7a+21b+2a-2b

7a+2a=9a

21b-2b=19b

Hope this helps:)

Answer Link
Lizzie010
Lizzie010 Lizzie010
  • 19-10-2020
The answer would be d 9a+19b
Answer Link

Otras preguntas

Which of these approaches probably is least likely to reduce stimuli that creates anxiety?
please answer fast !
The 6 components of health
how do you solve this inequality? 7<-(-k-3)+2
Use the discriminant to describe the roots of each equation. Then select the best description. 3x2 - 10 = 0. A) Double root B) Real and Rational root C) Real an
The U.S public debt as of October 2010 was $9.06 times 10 to the 12th power. What was the average US public debt per American if the population in 2010 W. $3.80
Can Someone Solve this please I need help Picture Down Below 1 Question 15 Points!!!
In Harper Lee’s style of introducing her young narrator, how does Lee’s adult perspective enter into Scout’s descriptions and comments?
How to comeplete each table of values
Please help me with this any answer will help