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tia_tia [17]
2 years ago
15

Can y’all help me please i don’t get a thing about this i’m too shy to ask for help?

Mathematics
1 answer:
Roman55 [17]2 years ago
7 0
U just graph em homie
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8z-13=7 what's the number that replaces z
Goshia [24]
All you do is solve for z. So 8z-13=7. To solve for a variable you have to do the opposite to cancel out the numbers on each side. First you add 13 over to 7 to cancel out 13 on the z side. So 8z=20 is what you have left. Then you divide 8 on both sides to cancel out 8 on the z side. what you are left with is z=2.5. Lastly you plug and check. 8(2.5) - 13 = 7, 20-13=7. And thats correct so z is 2.5.
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