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Mathematics
Markus Newman
27 July, 15:19
Find x if f (x) = 2x + 7 and f (x) = - 1.
5
-3
-4
+2
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2
)
Damian Townsend
27 July, 15:35
0
F (x) is - 1 which means x is - 1 so you times 2 x - 1 and that is - 2 then you add - 2+7 which is 5. so your answer would be 5
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Estrella Martin
27 July, 16:44
0
x = - 4
Step-by-step explanation:
Start by replacing f (x) with - 1.
-1 = 2x + 7
Then subtract 7 on both sides of the equation and add like terms.
-8 = 2x
Then divide 2 on both sides of the equation and solve.
-4 = x
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