I believe in the 20th century, if you need an exact date reply with yes!
Set 7x-4 and 31 equal to each other
7X-4=31
Add four to both sides
7X=27
X=3
The answer is D
Answer:
30
Step-by-step explanation:
The pattern is adding going up by 2s.
It goes like this:
+0, +2, +4, +6, +8, +10
0, 2, 6, 12, 20, 30
Hope it helps!
Square rooting because you have to find the inverse of the equation to solve
Answer:
x = 12
Step-by-step explanation:
The two marked angles where the transversal crosses the parallel lines are alternate interior angles, so are congruent. This fact gives you the relation you need to solve for x.
4x +12 = 60
4x = 48 . . . . . . subtract 12
x = 12 . . . . . divide by 4