Answer:
1.x=-4+ y/2 - z/2
2. X=-4-y-z
3. x=y/3-2/3
Step-by-step explanation:
We need more information to answer.
Answer:
7) x=3, y=-7
x=0, y=-2
Step-by-step explanation:
Let the width = x then length = x + 11 inches
Perimeter of a rectangle = 2*width + 2*length so we have the equation:-
( letting P = perimeter , L = length and W = width)
P = 2L + 2W
86 = 2(x + 11)) + 2x
86 = 4x + 22
4x = 86-22 = 64
x = 64 / 4 = 16 inches
Therefore the length of the rectangle = 16 + x
= 16 + 11 = 27 inches Answer
Answer:
78
Step-by-step explanation:
Taking f of 11 means plugging in 11 for x. So 7(11-1)+8. 11-1 is 10. 7 times 10 is 70 and then add the 8 and you get 78.
