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Write an equation and solve: Twice a number, increased by 3 is 7. A) 2 B) 5 C) 8 D) 20
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Write an equation and solve: Twice a number, increased by 3 is 7.

A) 2
B) 5
C) 8
D) 20

User NikxDa
by
7.2k points

2 Answers

4 votes
The unknown number canbe replaced with x. So twice a number is 2x and in creased by 3 is +3. so the equation would be 2x + 3= 7 and the unknow number, or x, is 2. 2 times two is 4 plus 3 = 7
User MePo
by
7.1k points
3 votes
2x+3=7
2x=4
x=2
The answer is A) 2
User Hauke
by
7.6k points
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