Answer:
x=-1
Step-by-step explanation:
7 pens and 20 pencils because 28 divided by 4 = 7 and 80 divided by 4 = 20
answer: x = 1/2
<u>explanation</u>
subtract 3x from both sides
4x+8=10
subtract 8 from both sides
4x=2
divide both sides by 4
x=2/4
simplify
x=1/2 OR x=.5
hope i helped!
5% aksjsmskdldsjsksdmnd sorry i needed to exceed the word limit
Hyp^2 = 8^2 + 9^2
hyp^2 = 64 + 81
hyp^2 = 145
hot = 12 inch