SOLUTION: the sum of numbers is 42 but then 6 times the first number exceeds 3 times the second number by 90. find the number

Algebra.Com
Question 365895: the sum of numbers is 42 but then 6 times the first number exceeds 3 times the second number by 90. find the number
Answer by mananth(16946)   (Show Source): You can put this solution on YOUR website!
let the numbers be x & y
x+y=42........................1
6x=3y+90
6x-3y=90.......................2
multiply equation 1 by 3
3x+3y=126
add this to equation 2
3x+6x+3y-3y=126+90
9x=216
/9
x=24 one number
other number = 42-24=18
...
m.ananth@hotmail.ca

RELATED QUESTIONS

three times a number increades 5 times another number is 49 but twice the second number... (answered by ankor@dixie-net.com)
the sum of 3 numbers is 79 the second number is 9 times the first nd the third number is... (answered by josh_jordan)
The sum of three numbers is 90 . The first number is 6 less than the second . The third... (answered by MathLover1)
The sum of three numbers is 90.The first number is 6 less than the second. The third... (answered by Cromlix)
1. One number is greater by 6 than twice another number, but 3 times the smaller number... (answered by ewatrrr)
Twice the sum of a number and 3 times a second numbers is 4. The difference of ten times (answered by mananth)
the sum of twice a first number and five times a second number is 90. if the second... (answered by explodingstxrs)
1.one number is 11 more than another number. find the two numbers if three times the... (answered by MathLover1)
The sum of three numbers is 10. The sum of twice the first​ number, 4 times the... (answered by ikleyn)