Question 392167
6x+7y=-14

x=21-7y
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substitute the value of x in the first equation
6(21-7y)+7y=-14
126-42y+7y=-14
-35y=-126-14
-35y=-140
/-35
y=-140/-35
{{{(highlight(y = 4))}}}
.
plug value of y in first equation
6x+7y=-14
6x+7*4=-14
6x+28=-14
6x=-28-14
6x=-42
/6
{{{(highlight(x= -7))}}}
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