HEL ME PL

A system of two equations is shown below:
Equation C: a = 3b + 6
Equation D: a = 7b − 1
What value of a can be substituted into equation D to solve the system of equations?
A) 3b
B) 7b
C) 3b + 6
D) 7B − 1

C because in C a=3b+6 so D can be substituted like that

c. prove the lengths are the same.

step-by-step explanation:

you need to prove the segments are congruent. congruent segments have the same length. find the lengths of the segments using the distance formula, and compare them.

answer: c. prove the lengths are the same.

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.