B) 0.3x + 3.1
C) 1.3 − 0.3x
D) 3.1 − 0.3x
Answer:
AnswerD
2x+y=5
solve using linear combination
Answer:
(-1,7)
Step-by-step explanation:
Add the equations in order to solve for the first variable. Plug this value into the other equations in order to solve for the remaining variables.
Prove: x = 15
Answer:
see the procedure
Step-by-step explanation:
The picture of the question in the attached figure
we know that
----> by vertical angles
substitute the given values
solve for x
subtract 4 both sides
divide by 3 both sides
Answer:
the reason for 4 -> vertical angles theorem
3x + 4 = 49 is the answer for the other one
Step-by-step explanation:
Hope this helps. You’re welcome!