hartmaaj95
12.08.2020 •
Mathematics
Is 7 a solution of 5x - 3 = 12?
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Ответ:
no
Step-by-step explanation:
5x - 3 = 12
5x=12+3
x=15/5=3
x=3
substitute x with 7 to find if it is a solution :
5(7)-3=12
35-3 ≠12 ( so no 7 is not a solution)
Ответ:
A
Step-by-step explanation: