Answer:
-6,-1
Step-by-step explanation:
y=4x+4 then simplify and came up with -6,-1.
Hey John
Let's start solving #1
x/4 = 3.5/28
Cross multiply
(x)(28) = (3.5)(4)
28x = 14
Divide both sides by 28
28x/28 = 14/28
x = 1/2
Next, let's solve the second one

Simplifies to:

Cross multiply
(105x + 75)(5) = (28)(50x)
525x + 375 = 1400x
Subtract 1400x to both sides
525x + 375 - 1400x = 1400x - 1400x
-875x + 375 = 0
Then subtract 375 from both sides
-875x + 375 - 375 = 0 - 375
-875x = -375
To find x, divide both sides by -875
-875x/-875 = -375/-875
x = 3/7
Let me know if you have questions about the answer.
Best of luck with your studies!
Step-by-step explanation:
plz mark me brainliest.
Answer:
No. 1: y = 90 (vertically opposite angles)
Also, x = 9. To find x, we'll have:

No. 4: y = 62 (vertically opposite angles)
Also, x = 12. To find x, we have:

Answer:60
Step-by-step explanation:all sides of the triangle have to be 180 degrees