I. Direction: Write an equation for each problem and then solve. 6. Doren is 14 years old, Doren's father is 5 years more than Iwice her age. Answer: 7. If thrice a number is increased by 15, the result is 39. What is the number Answer: 8. Twice the sum of a number and four is thirty. What is the value of the number Answer: 9. Maan weights 30 kilograms. His father weighs 12 kg less than 3 times Maan's weight Answer: 10. If eleven is added to the difference of a number and twenty-one, the sum is one hundred ten Answer:
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Answer:
6. x = 19 years old
7. x = 8
8. x = 11
9. 78
10. ?
Step-by-step explanation:
Solution:
6. x=14+15
x=19
7. 15 + 3x = 39
3x = 39 - 15
3x = 24
x = 24/3
x=8
8. 2(4 + x) = 30
8 + 2x = 30
2x = 30 - 8
2x = 22
x = 22/2
x=11
9. 3 x 30 - 12
90-12
=78