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Need help please and thank you
asked
Dec 14, 2019
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Need help please and thank you
Mathematics
middle-school
The Ghost
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(10x+21) + (13x) = 90
23x + 21 = 90
-21 -21
23x = 69
/23 /23
x = 3
10(3) + 21
30 + 21 = 51
FEH = 51
13(3) = 39
DEH =39
Rezoner
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Dec 18, 2019
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Rezoner
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