help me please pretty please
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you have to solve these by elimination method
I'll solve the second one and then you will solve the rest...
- let 3x+2y=10 be the equation 1
- and let 3x-y=22 be the 2nd equation
on subtracting eq 2 from eq 1,
3x+2y=10
(-) 3x-y=22
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0+3y= -12
therefore, |y= (-4) |
Now, on substituting the value of y in eq 1 we get the value of x
- 3x+ 2 (-4)=10
- 3x-8=10
- 3x=10+8
- x=18÷3
- | x=6 |
similarly you can find the values of x&y with the elimination method
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