cupcake20019peehui
19.01.2020 •
Mathematics
Wade has already spent $7 of his earnings. he could represent the total amount he has left using the expression a − 7 . then wade spent another $2. which expression represents the amount of money wade has now?
a 7+2
b a-9
c a + 9
d a - 2
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Ответ:
2x−y+2z
Step-by-step explanation:
2(x + z) - y
2(x) (2) (z) - y
2x−y+2z