Answer:
Step-by-step explanation:
-3x+10=21
-3x=21-10
-3x=11
x=11/-3
x=- 11/3
Answer:
B.
Step-by-step explanation:
Since we have a dotted line, our inequality must be either < or >, so A and D are out. We are left with B and C. Since our line is positive, our answer must be B and not C.
Alternatively, you can graph each equation and choose the best answer that matches the graph.
Answer:
round the numbers to the closest numbers that you can multiply mentally: one method is round all factors to the biggest digit
