3 years ago

PLEASE HELP ASAP Which of the following expressions is equivalent to the expression 42 + 90?

Mathematics

1 answer:

lubasha [3.4K]3 years ago

5 0

Answer:

6(7+15)

Step-by-step explanation:

6×7=42

6×15=90

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Answer:

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Solve the following:<br>a) 2(5x – 3) = 24<br>b) 5(2x + 1) = 50

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Answer:

x = 3 and x = $\frac{9}{2}$

Step-by-step explanation:

(a)

2(5x - 3) = 24 ( divide both sides by 2 )

5x - 3 = 12 ( add 3 to both sides )

5x = 15 ( divide both sides by 5 )

x = 3

(b)

5(2x + 1) = 50 ( divide both sides by 5 )

2x + 1 = 10 ( subtract 1 from both sides )

2x = 9 ( divide both sides by 2 )

x = $\frac{9}{2}$

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Answer:

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