Answer:
3n - 4
Step-by-step explanation:
for "four less than three times a number" meaning you subtract 4 from the product of 3 and the unknown number.
Answer:
x=-7
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
3(9+7x)=−120
(3)(9)+(3)(7x)=−120(Distribute)
27+21x=−120
21x+27=−120
Step 2: Subtract 27 from both sides.
21x+27−27=−120−27
21x=−147
Step 3: Divide both sides by 21.
21x/21=−147/21
x=−7
Answer:
∠b = 90°
Step-by-step explanation:
If you wrote it correctly then ∠d will = 90°, right?
We have AB ║(which is parallel to) D => ∠b = ∠d = 90°
P/S: I think that you took the wrong photo, the right question should be above. I'm very please if you can take it again and I will write the right solution down below in the comment section (if u don't mind)
Answer: 31
Step-by-step explanation: