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Alexxandr [17]
3 years ago
7

Plz help i don’t understand this type of math

Mathematics
1 answer:
Serga [27]3 years ago
7 0
QRS = DRS + QRD
167 = x + 143 + x + 30
167 = 2x + 173
-2x = 173 - 167
-2x = 6
x = 6/-2
x = -3

DRS = x + 143
= (-3) + 143
= 140
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