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IgorC [24]
3 years ago
5

The sum of 3 times a number and 5 is equal to 9.

Mathematics
2 answers:
NARA [144]3 years ago
5 0

Answer:

x = 4/3 or 1.33333333333333333333333(infinite 3)

Step-by-step explanation:

3 times a number =  3x

sum = addition

3x + 5 = 9

now balance equation, get numbers without x on same side. Subtract 5 from both sides, this will leave 3x on one side, and 9-5 on the other side.

3x = 4, now divide by 3 on each side to get x on one side

3x/3 = 4/3

x=4/3

4/3 = 1.33

3 x 1.33 +5 = 9

tiny-mole [99]3 years ago
4 0

Answer:

Let x equal “a number”

3x+5=9

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