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Anettt [7]
1 year ago
7

Solve for x. ←2x+6 X+9 x = [?]

Mathematics
1 answer:
Scorpion4ik [409]1 year ago
4 0

Answer:

3

Step-by-step explanation:

A simple way to solve this is by substituting, we start with trying 1 for x, 2+6=8, and 1+9=10. Because the two values are different, that means 1 is the incorrect value. We can try 2, 4+6=10, and 2+9=11, once again inequivalent. We finally try 3, and 6+6=12 and 3+9=12 meaning x must be 3

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Yo sup??

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100=2(35+b)

b=15 cm

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=35*15

=525 cm²

Hope this helps

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