SOLVE- 1)(−5)2 −2×(−9)+6=

2)(−9)−(−8)+2×42=

3)8÷(−4)×(−6)2 +7=

4)10×5−(−6)2 +(−8)=

5)(10 ÷ (−5) − (−2)) × (−3)3=

6)3×10+8−42=

7)(−3)3 −2+8÷(−8)=

8)4×(−8)+6−(−2)3=

9)(−5)2 ×3÷5+9=

10) 4 × (−6) ÷ 8 + 33=

11) (10 + 3) * 4 -10 +3=
12) 7 -6 * 2- (-7)+ (-6)=
13) 6* 6611-6 - 8=

Best answers will get branliest! you have 15 minutes

1.) 14

2.) 83

3.) 31

4.) 54

5.) 0

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