Answered

Welcome to Westonci.ca, where you can find answers to all your questions from a community of experienced professionals. Join our platform to connect with experts ready to provide precise answers to your questions in different areas. Explore comprehensive solutions to your questions from a wide range of professionals on our user-friendly platform.

You are given that
6a-2b = 8
(1)
a) Write down the value of 3a - b
b) Write down the value of 2b - 6a
-
6a-2b = 8
and
a + c = 5
c) You are given that
Find the value of
13a-4b + c

Sagot :

dammyzee

Answer:

a) 4

b) -8

c) 21

Step-by-step explanation:

a) 6a-2b=8

2(3a-b)=8

3a-b=4

b) -2b+6a=8

multiply all through by minus

-(-2b +6a)= -8

2b-6a= -8

c) 6a-2b=8

2(3a-b)=8

divide both sides by 2

3a-b=4

-b =4-3a

multiply both sides by minus

-(-b) = -(4-3a)

b= -4+3a

b=3a-4

a+c=5

c=5-a

13a-4b + c

13a - 4(3a-4) + (5-a)

13a - 12a +16 +5 -a

13a-12a-a+16+5

13a-13a+21

=21

We hope this information was helpful. Feel free to return anytime for more answers to your questions and concerns. Your visit means a lot to us. Don't hesitate to return for more reliable answers to any questions you may have. We're glad you chose Westonci.ca. Revisit us for updated answers from our knowledgeable team.