For the function f(X)=-12x-25 determine X when f(X)=-169?

[匿名]

2015-11-25 10:29 pm

回答 (4)

Como

2015-11-25 10:42 pm

12 x = 144
x = 12

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[匿名]

2015-11-25 10:33 pm

-12x-25=-169 add 25 to both sides

-12x=-144 divide both sides by -12

x=12

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[匿名]

2015-11-25 10:32 pm

- 12x - 25 = -169

- 12x = - 169 + 25

- 12x = - 144

x = -144/-12

= 12

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Iggy Rocko

2015-11-25 10:31 pm

-169 = -12x - 25
-144 = -12x
12 = x

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