Asked by crystal
s+t=-4 and s-t=2
Answers
Answered by
bobpursley
add the two equations, the t will disappear,then you can solve for s. Then put s back in either equation, and solve for t.
Answered by
drwls
Add the two equations together (left and right sides) and you get
2s = -2
Then divide both sides by 2 to find out what s is. Then use either equation to get t.
2s = -2
Then divide both sides by 2 to find out what s is. Then use either equation to get t.
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