3x + 2z - 4y - 6 + 4z + 7y x = 2, y = 1, z = -3

plz help me with this. this is a substitution question.

3x(2z+4z)+(−4y+7y)−6

Step-by-step explanation:

1 Collect like terms.

3x+(2z+4z)+(−4y+7y)−6

2 Simplify.

3x+(2z+4z)+(−4y+7y)−6

3x+6z+3y−6

(2,20) means that the 2 is 2 hours and 20 is 20$. so there both 20$ for 2 hours only the same price. like it says. so, the dunk tank and the bounce house are the same price (20$) for the same amount of time (2 hours).

hope i

e

step-by-step explanation:

an equation by definition has to have two or more variables (x and 2 in this case)