solve the system of the equation what is the solution?
7u+v=27
7u=+43

Question

solve the system  of the equation what is the solution?
7u+v=27
7u=+43

luffingsails · Answer

Take the second equation and solve it for u. Then substitute the result into the first equation and solve it for v.

u = 43/7 (first part of solution)

Substitute into first equation

7(43/7) + v = 27
43 +v = 27
v = -16

So, u = 43/7, v = -16

anonymous · Answer

im lost it the answer would then be -16 right for v but what about u

luffingsails · Answer

The answer for u is given solely by the second equation. If I gave you:

7u = 43

What would u be?

anonymous · Answer

6.14

anonymous · Answer

right ????

luffingsails · Answer

Well, yes, if you are required to provide an exact answer. Otherwise, the answer is 43/7.

luffingsails · Answer

But after I know what u is, I can substitute that value into equation 1, 7u+v=27. Then I have a single unknown and can solve!