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Using the guess and check technique, find two numbers that satisfy both conditions. The sum of the two numbers is 56. The second number is seven less than two times the first number. What is the value
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Using the guess and check technique, find two numbers that satisfy both conditions. The sum of the two numbers is 56. The second number is seven less than two times the first number. What is the value of the first number, x?

A.19
B.21
C.31
D.35

User Cam Song
by
5.8k points

2 Answers

2 votes

Answer:

B.21

Explanation

I Guessed and Got it right


User Adri
by
6.6k points
2 votes
So let's get two variables
x and y
X+Y=56
But with our formula...
3x - 7 = 56
x = 21
The answer is option B
User Teastburn
by
6.3k points
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