Question

A. Evaluating Algebraic Expressions

1. Twice a number increased by 12 is 28. Find the number.

2-3. The sum of consecutive number is 91. Find the numbers.

4. A number reduced by 5 is equal to twice the number. Find the number.

5. Thrice the sum of a number and 5 is 18. What is twice the number?



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Answer 1

Step-by-step explanation:

1. 2x+12=28

2x=28-12

2x=16

x=7

2. x+1=91

x=91-1

x=90

3. 2x-5=0

2x=5

x=5/2