Area and perimiterwhat is the value of x? enter your answer in the box. x = an equilateral triangle l m n with horizontal base m n and vertex l is above the base. sides l m and m n and n l are labeled with single tick mark. angle l n m is labeled as left parenthesis 7 x minus 3 right parenthesis degrees. angle l m n is labeled as left parenthesis 11 y plus 5 right parenthesis degrees.

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! i think the answer is 1/2 : )

answer: the answer is one

step-by-step explanation:

pemdas, in this situation there is no parenthesis or exponents so you go to multiplication, 1x1=1, then division 1/1= 1 then addition 1+1=2 then subtraction 2-1=1

the answer is d

for problems like this theres an app, its photomath that explains the problem and gives the answer hope i