Chapter Review
Sign In
Recall the theorem, which tells us that if a quadrilateral is a parallelogram then its opposite sides are congruent.
x= 3
y=7
We want to find the values of x and y for which ABCD is a parallelogram, using the given algebraic expressions for the segment lengths.
(II): LHS-3=RHS-3
(I): y= 2x+1
(I): Distribute 2
(I): LHS-4x=RHS-4x
(I): LHS+1=RHS+1
(I): Rearrange equation
(II): x= 3
(II): Multiply
(II): Add terms