Which of the following ordered pairs (x, y) satisfies
both equations y =x^2 + 3x - 4 and x = y - 4 ?
a) (0, -4)
b) (2,6)
c) (3, 14)
d) (5,9)

well there are two answers for that.

1: you need 120 ones then that will equal up to 120.

2: you could also do one 100 and 2 tens.

those are the answers that i have thought of.

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!