Area of a trapezoid = 12×(sum of bases)×height21×(sum of bases)×height.
If 3�−4=143s−4=14, what is the value of �s?
If 3�−2=133z−2=13, what is the value of �z?
If 2�+7=212r+7=21, what is the value of �r?
If 5�+3=285q+3=28, what is the value of �q?
If 2�−3=132x−3=13, what is the value of �x?
Solve for �x: 35(10−�)=653(10−x)=6
Solve for �x: 23(9−�)=432(9−x)=4
If 4�+7=234w+7=23, what is the value of �w?
If 3�+4=193f+4=19, what is the value of �f?
Solve for �x: 27(14+�)=672(14+x)=6