Drag the black dots to move the like terms next to each other.
Then simplify the expression.
4x-2y + 7-y +5-3x

Acontractor needs 54 square feet of brick to construct a rectangular walkway. the length of the walkway is 15 feet more than the width. write an equation that could be used to determine the dimensions of the walkway. solve this equation to find the length and width, in feet, of the walkway.

Can someone me my sister? she is in third grade. 50 points and brainlist! ones that are not answered. plz and thx!

What is the effect on the graph of the parent function f(x) = x when f(x) is replaced with 3f(x)? a) shifts the line 3 units up b) shifts the line 3 units down c) increases the slope of the line by a factor of 3 d) decreases the slope of the line by a factor of 3