Answer:
a) x = 7.5
b) x = 1
Step-by-step explanation:
a)
= x + 7
4x - 1 = 2(x + 7)
4x - 1 = 2x + 14
4x - 2x = 14 + 1
2x = 15
<u>x = 7.5</u>
b) 3x + 2 = 
3(3x + 2) = 2x + 13
9x + 6 = 2x + 13
9x - 2x = 13 - 6
7x = 7
<u>x = 1</u>
REMEMBER: When moving numbers or symbols from one side of an equation to another, you must reverse the mathematical function (e.g. × becomes a ÷, and + becomes a -). A fraction is always a ÷, so when you move the denominator (bottom number), it becomes a ×.
Answer:
Thank u so much. So it was a few day before christmas and i decided to get my brother a persent. So when i got home i got duck tape wraping paper and that paper stuffing for like the christmas bags. Ok so anyway i wraped it taped it with duck tape then raped it in stuffing paper and. ducktaped that too. Then i wraped it agine and ducktaped it and then raped it in stuffing paper and taped it with duck tape. I did this about 5-7 times lol. The reaction of my brother was funny. It was a medium sized box with a small pack of gum. Like i couldnt stop laughing. If u want a good laugh try this or u can do it different if u want. Have a merry christmas :D
Step-by-step explanation:
p.s this was last year
The surface area will be 4 times the original size. Here is why: You are doubling each dimension, and area is a 2 dimensional measurement. Because of this whatever you are doing to the length of the side will happen 2 times. In this case it would be x2 x2 which equals 4. You can provide evident by using a cube. The surface area of a cube with side lengths of 1 would be 1 x 6=6 square inches. If you double the side length, it would be 4 x 6= 24 square inches.
It is the longest side
it is opposite the right angle
Answer:
The value of k =3
Step-by-step explanation:
We need to solve this equation to become in standard form to find the value of k.

The given standard form is:

Comparing it with 
The value of k =3