2 years ago

Help me please WITH NUMBER 7

Mathematics

1 answer:

Eva8 [605]2 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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