Answer:
whT type of question is this
Answer:
a. college ready
Step-by-step explanation:
Answer:
2 pieces (that each equal 1/3 of the whole bar)
-3y = x...so we sub in -3y for x in the other equation
-x + 7y = 70
-(-3y) + 7y = 70
3y + 7y = 70
10y = 70
y = 70/10
y = 7
so we sub in 7 for y in either of the original equations to find x
-3y = x
-3(7) = x
-21 = x
so ur solution is (-21,7)
Answer: f(x) = 2x - 3 and f(x) = -4x
