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3 years ago

What is 0.4(5+2x)-0.5=3(0.3x+0.7) I've solved this but I'm not sure I got the right answer

Mathematics

2 answers:

iragen [17]3 years ago

8 0

0.4(5+2x)-0.5=3(0.3x+0.7)
2+0.8x-0.5=0.9x+2.1
0.8x-0.9x=2.1-2+0.5
-0.1x=2.5
x=-25

BlackZzzverrR [31]3 years ago

5 0

If you have a graphing calculator one way to know you are right is put the left side in Y1 and the right side in Y2 then hit 2nd trace and intersection then find the intersection and the X value is your answer. If you don't have a graphing calculator then I'm sorry

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7 0

3 years ago

What is the correct answer..

solong [7]

Answer:

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3 years ago

Please help. I know it’s not the hardest, but I think I did something wrong when I solved it. Please include your work. Tysm! Pl

Alex73 [517]

1 Multiply both sides by

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(

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4 Expand.

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please see the attached picture for full solution

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