Question

6x+7y=52×-3y=7%20%3D%207" id="TexFormula1" title="6 \times + 7y = 5 \\ 2 \times - 3y = 7" alt="6 \times + 7y = 5 \\ 2 \times - 3y = 7" align="absmiddle" class="latex-formula">
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Answer 1

Answer:

x=2; y=-1

Step-by-step explanation:

Hello,

(1) 6x+7y=5

(2) 2x-3y=7

We multiply equation (2) by 3, it gives

6x-9y=21 and we subtract from (1)

6x-9y-6x-7y=-16y=21-5=16

So y = -1

we replace in (1) 6x-7=5 <=> 6x=7+5=12 <=> x =12/6=2

thanks

Answer 2

Answer:

X = 79/36

Y = -7/6

Step-by-step explanation: