Asked by ella
the difference of two numbers is 10. the sum of three times the smaller number and four times the larger is 75. find the numbers
Answers
Answered by
Anthony
so lets represent the numbers as variables
x will be the bigger number and y smaller.
x-y=10 3y+4x=75
solve for x
x-y=10 x=10+y
plug x into the other equation
3y+4(10+y)=75 3y+40+4y=75
solve for y and then plug it back into the equation to solve for x.
x will be the bigger number and y smaller.
x-y=10 3y+4x=75
solve for x
x-y=10 x=10+y
plug x into the other equation
3y+4(10+y)=75 3y+40+4y=75
solve for y and then plug it back into the equation to solve for x.
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