The Sum of Two Numbers is 5 and Their Difference is 1
x + y = 5
The difference between x and y is 1. In other words, x minus y equals 1 and can be written as equation B:x - y = 1
Now solve equation B for x to get the revised equation B: x - y = 1
x = 1 + y
x + y = 5
1 + y + y = 5
1 + 2y = 5
2y = 4
y = 2
Now we know y is 2. Which means that we can substitute y for 2 in equation A and solve for x: x + y = 5
x + 2 = 5
X = 3
Sum: 3 + 2 = 5
Difference: 3 - 2 = 1
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The Sum of Two Numbers is 5 and Their Difference is 2
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1 Expert Answer
Kenneth S. answered • 07/26/17
Expert Help in Algebra/Trig/(Pre)calculus to Guarantee Success in 2018
that should get you started; do you know what to do now?