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humanpoptartcat
A triangle will always be a total of 180% so to get that from there you would make the equation 2x+x+x-20=180 and using the combine like terms that gets you 4x-20=180. And 20 to both sides to get x alone and you’ll get 4x=200. Divide both sides by 4 and you’ll get x=50. To check just substitute back in so 50-20=30 2(50)=100 and x=50. Then make the equation 30+100+50 and if it equals 180 then you’re good.
Jujucloudy

Answer:

x=50

top corner =2x =100

bottom left =x =50

bottom right =x-20 =30

Step-by-step explanation:

all angles of a triangle add up to 180° so:

(x-20) + (2x) + x = 180

then remove redundant parentheses

x-20 + 2x + x = 180

add like terms

2 − 20 + 2 =180

Rearrange terms

2+2−20=180

add 20 to both sides of the equation

2+2−20 +20=180+20

simplify

2+2=200

add

4x=200

divide 4 to both sides of the equation

4x/4=200/4

simplify

x=50

Your welcome :)

Hope this helps!

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