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Mathematics 16 Online
xXQuintonXx:

help please(ss below)

xXQuintonXx:

Angle:

Your picture is of a linear pair linear pairs are two angles that add up to equal 180 degrees

crispyrat:

add the two equations togheter, and combine like terms first. they should add up to 180 the degree of a straight line, then simplfy to x=?

thony:

@crispyrat wrote:
add the two equations togheter, and combine like terms first. they should add up to 180 the degree of a straight line, then simplfy to x=?
yup

xXQuintonXx:

so i had the like terms together now?

Angle:

yes 3x + 2 + 6x - 20 = 180

xXQuintonXx:

*add

xXQuintonXx:

9x + 22 = 180 so then i do 9 * X and find out wut makes it so that i can add 22 to make 180 right?

Angle:

hold up 2 - 20 = -18 not 22

xXQuintonXx:

oh mb

Angle:

and then yes, you are looking for "What number times 9 minus 18 equals 180"?

xXQuintonXx:

X=18

xXQuintonXx:

so i get a number that can be subtracted by 18 to make 180?!!?

crispyrat:

so u should have 9x+(2-20)=180 which is 9x+-18=18 so what can u do to get rid of the -18 on one side?

crispyrat:

then you would apply the same thing on the other

xXQuintonXx:

i subtract the other 18?

crispyrat:

no 9x-18-->9x what would u do

Angle:

9x - 18 = 180 +18 +18


xXQuintonXx:

so its now 9x - 36 = 198?

crispyrat:

9x-18+18=9x

Angle:

@xxquintonxx wrote:
so its now 9x - 36 = 198?
-18 + 18 = 0

boredfr:

Ok so like the other ones it is a straight line which means it is equal to 180 So that means (3x+2)+(6x-20)=180 Combine like terms (3x+6x)+(2+-20)=180 aka 9x+-18=180 Now add 18 to both sides to cancel it out (what you do to one side you have to do to the other) 9x+ -18 +18= 180+18 aka 9x=198 Now divide 198 by 9 and what do you get?

xXQuintonXx:

@angle wrote:
@xxquintonxx wrote:
so its now 9x - 36 = 198?
-18 + 18 = 0
thanks!

Angle:

uh...

xXQuintonXx:

its 22

Angle:

yes

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