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kondor19780726 [428]
3 years ago
13

Solve: 2x-3y=21 and -6x+2y=7 PLEASE HELP

Mathematics
2 answers:
Novosadov [1.4K]3 years ago
4 0
The first one is : x=<span><span><span>3/2</span>y</span>+<span>21/<span>2
the second one is: </span></span></span>x=<span><span><span>1/3</span>y</span>+<span><span>−7/</span><span>6</span></span></span>
stepladder [879]3 years ago
3 0

y= 10  

2x-3y=21

2x=21+3y

x= (21/2 +3/2 y)


-6(21/2+3/2y)+2y=7

126/2+18/2y+2y=7


    sorry I need to leave now

      




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