3 x 7 because three, seven times is 21
Answer:
<em><u>7-4*(-1)</u></em>
<em><u>7-4*(-1)7+4</u></em>
<em><u>7-4*(-1)7+411</u></em>
Step-by-step explanation:
hope it will help u
Answer:
x is greater than or equal to -4
Step-by-step explanation:
I am not sure if I have to graph as well so I will just solve the inequality.
3x-12 greater than or equal to 7x+4
+12 +12
3x is greater than or equal to 7x+16
-7x -7x
-4x is greater than or equal to 16
-4x/-4 16/-4
x is greater than or equal to -4
Assume the secret number is x.
"Al doubled the number and added 15 to the result. He got 51."
means 2x+15=51
solving for x:
2x+15=51
2x=51-15
2x=36
x=18
"Beverly did the same operations with their number, but in the reversed order." means she first added 15 to the number, then she doubled the result,
that is she performed the operation:
First: x+15
then: 2(x+15)
since we found x=18, then we have 2(x+15)=2(18+15)=2*33=66
Answer: 66
