Which expression is equivalent to 3(6x + 1) for all values of x?

answer:

18x+3

step-by-step explanation:

so you would distribute the 3 to the 6x so 3(6x) 3*1 which would be 3. so you would multipe 3*6x and get 18x+3: )

correct

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