-7x -7y = 21
Y = 6
Since they are giving you the value of 6 you just plug it in the equation
-7x - 7(6) = 21
-7x - 42 = 21
+ 42. +42
-7x = 63
/-7. /-7
X = -9
Answer:
Step-by-step explanation:
Volume = surface area of base * height

Answer:The reason there is no commutative property for subtraction or division is because order matters when performing these operations.
Step-by-step explanation:
Answer:
Easy -2x
Step-by-step explanation:Because both a positive y and a negative y cancle out eachother so all thats left is both of the negative x's