Expand the following:
1. a) 4(x - 3)
c) -6(7x – 4y)
e) – 7(2m - 3n)​

29 is the correct answer

step-by-step explanation:

an altitude of 15,000 feet

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

hi how are you doing today? if you ever need just tell me

step-by-step explanation: