Explain how you could use inverse operations to solve addition or subtraction equations without using algebra tiles.

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab

Alina fully simplifies this polynomial and then writes it in standard form. xy2 – 2x2y + 3y3 – 6x2y + 4xy2 if alina wrote the last term as 3y3, which must be the first term of her polynomial in standard form? xy2 5xy2 –8x2y –2x2y

Aramp rises 4 feet over a distance of 10 feet. what is the length of the ramp?