Solve each system of equations by using a table .
1. y=3x-4
y=-2x+11

Iam trying to solve a linear equation for the shoe size of someone 84" tall taking into consideration example 1 is 69" tall with a shoe size of 9 and example 2 is 72 inches tall with a shoe size of 11. i understand that the equation should be y=mx+b and that on the graph the answer is (3,2) but i just don't understand how to create the equation to solve for 84-inches and 60-inches tall questions. after two days, i need .

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

How do i solve uniform motion problems?