When solving the equation 4(3x+2)-9=8x+7, emily wrote 4(3x+2)=8x+16 as her first step. which property justifies emily's first step

Find the solution of this system of equation -7x+y=-20 9x-3y=36

Aquadratic equation in standard from is written ax^2= bx+c, where a,b and c are real numbers and a is not zero?

Apool measures 100 meters by 100 meters a toddler inside the pool and trows a ball 60 centimeters from one edge of the pool.how far is the ball from the opposite edge of the pool