SOLUTION: Can you help me solve two questions:
Grade 10 method of elimination:
2x+9y=-4
5x-2y=39
___________ __
Second question is expand simplify and solve:
2(3x-1)-(y+4)=-7
Algebra.Com
Question 570399: Can you help me solve two questions:
Grade 10 method of elimination:
2x+9y=-4
5x-2y=39
______________
Second question is expand simplify and solve:
2(3x-1)-(y+4)=-7
thanks, help is appreciated
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Multiply the first equation by 2, then multiply the second equation by 9:
Note that the coefficients on 
in the two equations are now additive inverses. Add the two equations to each other then solve the resulting single variable equation for 
. Once you have determined the value for , substitute that value back into either original equation and solve for
John
My calculator said it, I believe it, that settles it
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