Angle r and angel s are complementary angles if r=12x-3 and s= 7x-2, find m

s=33

r=57

Step-by-step explanation:

12x-3+7x-2+90

19x-5=90

19x=95

x=5

12(5)-3=57

7(5)-2=33

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