What is the result of adding these two equations?
−5x − 9y = 3
5x - 9y = -2
Answers
Answered by
1
Step-by-step explanation:
-5x − 9y = 3
5x - 9y = -2
+__________
0-18y=1
-18y= 1
y=-1/18 answer
Answered by
1
Step-by-step explanation:
−5x−9y=3+5x−9y=−2
Consider the first equation. Subtract 5x from both sides.
−5x−9y−5x=3−9y
Combine -5xand -5x to get -10x
−10x−9y=3−9y
Add 9y to both sides.
−10x−9y+9y=3
Combine -9y and 9y to get 0
−10x=3
Divide both sides by -10
x=− 3/10
Consider the second equation. Insert the known values of variables into the equation.
3+5(− 3/10)-9y = -2
after solving a lot you'll get. y=7/10
so x=3/10
y= 7/10
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