Asked by June
Given that f(x) = 2x − 5, find the value of x that makes f(x) = 15
A.5
B.10
C.20
D.25
A.5
B.10
C.20
D.25
Answers
Answered by
Damon
2 x - 5 = 15
add 5 to both sides
2 x = 20
multiply both sides by 1/2
x = 10
==============
check
2 (10) - 5
20 - 5
15 sure enough
add 5 to both sides
2 x = 20
multiply both sides by 1/2
x = 10
==============
check
2 (10) - 5
20 - 5
15 sure enough
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