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Sagot :
Answer:
x=11
Step-by-step explanation:
3x+28+5x+52+(2x-10)=180
8x+80+2x-10=180
10x+70=180
x=180-70/10
x=11
3x+28=61
5x+52=107
2x-10=12
HOPE IT HELPS :)
Answer:
x=11
Basic fact:
Angles in a triangle add up to 180 degrees
Step-by-step explanation:
so let's gather all the information we have been given
3x+28+5x+52+2x-10
now let's add everything up
3x+5x+2x=10x
28+52-10=70
we know that 10x+70 =180
-70 from both sides
10x=110
divide by 10 to get x on its own
x=11
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