Acaterpillar eats 1400, percent of its birth mass in one day. the caterpillar's birth mass is m grams.
which of the following expressions could represent the amount, in grams, the caterpillar eats in one day?
choose 2 answers:

the answer is 62

4 puzzles in 3 hours

step-by-step explanation:

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18