SOLUTION: Sir i need u help at the earliest . 1. Solve by elimination method:- 4x+5y=6 2/3x-5y=7 2.Solve by substitution method:- 5x+6y=7 7/8x+9/10y=3/4 thank u ........

Question 111177: Sir i need u help at the earliest .
1. Solve by elimination method:-
4x+5y=6
2/3x-5y=7
2.Solve by substitution method:-
5x+6y=7
7/8x+9/10y=3/4
thank u ........
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
I'll do one, you try the other one, and write back if you are still having trouble.
:

:
Using the first equation, solve for y:
:

:
Now substitute this value for y into the second equation:
:

:
Now substitute this value of x into the first equation:
:

:
Check:

, Check
:
Ok, the next one is yours. Like I said, write back if you are still having trouble. Just remember to be very careful with your signs and with the arithmetic in general.
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