exam Maths Puzzle Numerical Ability

6x + 2y + z = 6 (1)
3x + 4y + 5z = 12 (2)
2x + 7y + 4x + 12.25 (3)

Help!!!

Read Solution (Total 0)

exam Other Question

Find the selling price and the mark-up amount. The cost is $350., the mark-up rate is 70%,

Please help,

Ellen How do I find the ordered pairs for this equation 2x+y=10 I am not sure how to start I think I SOLVE X AND THEN Y.aM I CORRECT?