Find the solution for the system of linear equations by graphing y=x y=2x-4

Atheater wants to build movable steps that they can use to go on and off the stage. they want the steps to have enough space inside so they can also be used to store props. how much space is inside the steps?

The square root of 9x plus 7 plus the square rot of 2x equall to 7

Solve the equation for x.3(6x - 1) = 12 i've tried doing the math and i can't find out what i'm doing wrong