Y=6x-14 & y=-2x+34 solved in the substitution method

Show me how you find y and determine what y is you i appreciate it : )

Convert 16 yards to feet use the conversion rate 3 feet = 1 yard

Scenario: a rectangular plot of ground is 5 meters longer than it is wide. its area is 20,000 square meters. question: what equation will you find the dimensions? note: let w represent the width. options: w(w+5)=20,000 w^2=20,000+5 (w(w+5))/2=20,000 w+2(w+5)=20,000