Posted by Kris on Tuesday, February 24, 2009 at 7:05pm.
This is a hard one. What helps me is to read each part of the problem carefully. Write the numbers you think on a piece of paper. When you find out if it is wrong put an x next to it. This will narrow down the process.
i got the equations from my sister
a+d= 2b
b= c-2
d=2a
but what do i do next?
Related Questions
Math - i am a four digit number. all of my digits are different. my first digit ...
Math - A number has 4 digits. The sum of the first and last digit is twice the ...
math - Find the four-digit number described by these three clues. 1) The first ...
math - Find a six-digit even number containing no zeros and no repeating digits ...
math - The sum of the digits of a positive two-digit number is 13,If twice the ...
Math - Solve the mathematical puzzle. Determine the digits of R from these clues...
4th grade math - Find the mystery number. It is a 4 digit odd number. All the ...
math - find the mystery number, it is a 4 digit odd number, all the digits are ...
Math - The mystery number's tens digit is less than the ones digit. The tens...
algebra - the winninq three-digit number in a drawing for a door prize had the ...
For Further Reading
