Its quite simple. All you have to due is substitute the numbers they gave you for each letter. So.... it would look like this > 5(2) + 3(5) - 2(4) = ? Now all you have to do is solve it! Hope this helps :)
Answer:
8
Step-by-step explanation:
y = 2
z = 8
8y - z
= 8 ( 2 ) - 8
= 16 - 8
= 8
(a) 2x + 5x + 4 = 25 <== ur equation
7x + 4 = 25
7x = 25 - 4
7x = 21
x = 21/7
x = 3
(b) first piece = 2x....= 2(3) = 6 ft <=
second piece = 5x....= 5(3) = 15 ft <=
Answer:
x=4
y=0
Step-by-step explanation:
