2x - 3y = -1
y = x - 1

X would equal 2 (x=2)

Step-by-step explanation:

For this problem, we can use the substitution method. First plug in y.

We can then simplify the equation by multiplying -3 to (x-1),

Now, combine the x's.

Subtract 1 from both sides.

Because x must be positive, we have to divide by -1 on both sides.

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3