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3 years ago

0.4x + 3.9=5.78 I got x=9.75 Is this correct ?

Mathematics

2 answers:

alexgriva [62]3 years ago

8 0

0.4x+3.9=5.78
-3.9 -3.9
0.4x=1.88
----- ------
0.4 0.4
x = 4.7

melamori03 [73]3 years ago

7 0

No. First subtract 3.9 from both sides. then divide your result by 0.4.

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Step-by-step explanation:

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Answer:

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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