Ayudenme doy 25 puntos : 7x + 4y = 2 2x + y = 6 2x - y = 6
x + y = 1 -x + 4y = 6 -2x + 4y = 3

Phillip had some bricks. he stacked them in 6 equal piles. which expression shows the number of bricks phillip put in each pile? let the variable m stand for the unknown number of bricks. m + 6 m÷6    m−6    6m

Sanjay solved the equation below. which property did he use to determine that 7x+42=42 is equivalent to 7(x+6)=42 7x+42=42 7x=0 x=0

What is the solution to the system of equations? y=1.5-3 y=-x