Asked by Louis
So I solved this problem but, strange as it sounds, I don't know how to do the work.
Here's the question: One number is eight less than another number. The sum of the numbers is eighty. Find both numbers.
Here's what I've got:
y-8=x
x+y=80
x=36
y=44
I won't get credit unless I show the "correct" work. Can you help me please?
Here's the question: One number is eight less than another number. The sum of the numbers is eighty. Find both numbers.
Here's what I've got:
y-8=x
x+y=80
x=36
y=44
I won't get credit unless I show the "correct" work. Can you help me please?
Answers
Answered by
PsyDAG
y - 8 = x
x + y = 80
Substitute y-8 for x in the second equation and solve for y. Insert that value into the first equation to solve for x. Check by putting both values into the second equation.
x + y = 80
Substitute y-8 for x in the second equation and solve for y. Insert that value into the first equation to solve for x. Check by putting both values into the second equation.
Answered by
Ms. Sue
y-8=x
x+y=80
Substitute
y - 8 + y = 80
2y = 88
y = 44
44 - 8 = x
36 = x
x+y=80
Substitute
y - 8 + y = 80
2y = 88
y = 44
44 - 8 = x
36 = x
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