3 years ago

5(2x+6)= -4( -5 - 2x)+3x Solve for x

Mathematics

1 answer:

lisov135 [29]3 years ago

8 0

Answer: x = -7/2

Step-by-step explanation:

10x+ 30 = 20 +8x+ 3

10x+ 30=23+8x

10x-8x = 23-30

2x=-7

( a helpful app to help with these type of problems is photomath)

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Jackson’s age was 2/5 of the age he will be 20 years from now 7 years ago. How old is Jackson now?

bonufazy [111]

<h3>The present age of Jackson is 25 years old</h3>

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Let the present age of Jackson be "x"

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Jackson’s age was 2/5 of the age he will be 20 years from now 7 years ago

$\frac{2}{5} \times (x + 20) = x - 7\\\\2(x + 20) = 5(x - 7)\\\\2x + 40 = 5x - 35\\\\5x - 2x = 40 +35\\\\3x = 75\\\\Divide\ both\ sides\ by\ 3\\\\x = 25$

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