Solve each pair of simultaneous equations algebraically. where necessary give your solution correct to 3 significant figures.

c. x + y = 3
4x - y^2 = 0

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

answer: the answer is fre sha voca do

step-by-step explanation:

i dont know what you want me to answer for this but im guessing 2: 11?

1,2,4,5,10,11,20,22,44,55,110,220