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sashaice [31]
3 years ago
6

Help me please WITH NUMBER 7

Mathematics
1 answer:
Eva8 [605]3 years ago
6 0
7a)
x - 10 + x - 11 + 3x + 6 = 180
5x -15 = 180
5x = 195
  x = 39

7b)
y = 3x + 6
y = 3(39) +6
y = 117 + 6
y = 123
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