Answer:
19.6875
Step-by-step explanation:
Answer:
and 
Step-by-step explanation:
Given
[Correct Question]


Required
Solve using elimination
First, we eliminate x.
Subtract equation (1) from (2)




Divide through ny 7

Take 
Make x^2 the subject

Substitute 4 for y



Take square roots


Answer:
good luck...
Step-by-step explanation:
6a-2(a-1)
6a-2a-2
4a-2
I think it is 4a-2
Answer:
17 1/2
Step-by-step explanation:
17 2/4 is the given and 2/4 is equivalent to one half so the answer is 17 1/2.
Hopefully you understand it now.