Answer:

Step-by-step explanation:
#Using the method of substitution and replacement of unknown values.
Given that

Express eqtn (ii) in terms of x

Replacing for x in eqtn (i)

Substitute y value in eqtn(ii) to obtain x

The fraction form of this is 40/3, decimal form is 13.3 infinite.
Use whichever form your teacher wants you to use. (Refer to the image for the steps)
80*4=320-(71+80+86)=83 So 83 needs to be added.
Answer:
x^2 - 6x + 9.
Step-by-step explanation:
f(x) = x^2 and g(x) = x - 3.
To find f(g(x)) we replace the x in f(x) by g(x).
f(g(x)) = (x - 3)^2
= x^2 - 6x + 9.
Answer:
1 2/3 + 1 1/2
Step-by-step explanation:
3 1/6