let x =the number
Step-by-step explanation:
81+x=3x-39
group like terms
81+39=3x-x
120=2x
120/2=2x/2
60=x
therefore x =60
Answer:
This construction shows how to draw the perpendicular bisector of a given line segment with compass and straightedge or ruler. This both bisects the segment (divides it into two equal parts, and is perpendicular to it. It finds the midpoint of the given line segment.
Answer:
4b/a
Step-by-step explanation:
(2x + 7) / (3x - 4) = 11/2
cross multiply
11(3x - 4) = 2(2x + 7)
33x - 44 = 4x + 14
33x - 4x = 14 + 44
29x = 58
x = 58/29
x = 2 <===
