Question

need help again....

Answer 1

well, you know that 9x-78 +7x-14 =90, start with that...

Answer 2

sorry, 180

Answer 3

ya so 9x-7x?

Answer 4

or plus?

Answer 5

well, group the like terms...

Answer 6

oh so 9x-7x

Answer 7

you have 9x, 7x, -78, and -14

Answer 8

ya...

Answer 9

you are going to add them all, but leave the - signs in or it would get messy

Answer 10

9x+7x+(-78)+(-14)

Answer 11

so 16x an -92

Answer 12

Bingo

Answer 13

then what?

Answer 14

16x-92=180

Answer 15

solve for x

Answer 16

16 divided by 92? or 180

Answer 17

Start off by getting the 16x by itself. add 92 to both sides

Answer 18

\[16x-92+92=180+92\]

Answer 19

ok so 16x=272

Answer 20

now divid 16 by 272?

Answer 21

Good

Answer 22

divide both sides by 16

Answer 23

but whats z?

Answer 24

\[16x/16=272/16\]

Answer 25

z is coming soon
figure x first

Answer 26

i did 17

Answer 27

good, now plug x=17 into the angle oposit z and calculate the value

Answer 28

So the 9X one

Answer 29

75?

Answer 30

Yep

Answer 31

thank you sooooo much

Answer 32

No prob, just remember the two angles that make a straight line have to equal 180, and the angles opposite each other are equal.

Answer 33

ok

Answer 34

i have another question

Answer 35

u there...?

Answer 36

sure

Answer 37

cool, same story.what is x equal to?

Answer 38

the angle below it

Answer 39

so 72

Answer 40

X is the easy one to start with, but you could work either one. better question is what does x+72 equal?

Answer 41

144

Answer 42

not quite

Answer 43

x+72 make a straight line, so...

Answer 44

what? im not following..

Answer 45

K and l are parallel, so you could pretend the part between doesn't exist, then your back to the other picture. Straight line is always 180.

Answer 46

so 108?