Answer:
r = -4
Step-by-step explanation:
2r + 7 = - 1
2r = - 1 - 7
2r = - 8
Answer: r=-4
Step-by-step explanation: -3(2r + 7)=3 (−3)(2r)+(−3)(7)=3 −6r+−21=3 −6r−21+21=3+21 -6r/-6=24/-6 r=-4
1 Carton Has The Mass of About 2kg
5
bc
3 cm
Your answer is 12 and -6
12 X -6= -72
12 + -6= 6