1 year ago

Pls help with age problem.

Mathematics

1 answer:

kozerog [31]1 year ago

3 0

Answer:

John is 19 and his sister is 23.

Step-by-step explanation:

See attached image.

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What is the value of x in the equation 4(2x 10) = 0? −5 −7 5 7

Alex73 [517]

4(2x+10)= 0
8x+40=0
subtract 40 from both sides
8x+40-40=0-40
8x=-40
x=-40/8
x=-5

4(2x-10)=0
8x-40=0
Add 40 from both sides
8x-40+40=0+40
8x=40
x=40/8
x=5

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liraira [26]

If we plug the values, we have

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