Answer:
(-2, 0)
Step-by-step explanation:
Use elimination: add the two systems. Because the left is equal to right, you are adding the same thing and it's legal.
-x+3y=2
+ (x+y=-2)
Add each term
-x+x + 3y+y = 2+ -2
4y=0
y=0
x+y=-2
x+0=-2
x=-2
Answer:
181.99956681
Step-by-step explanation:
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" <span>Substitution method can be applied in four steps.Solve one of the equations for either x = or y = .Substitute the solution from step 1 into the other equation.Solve this new equation.Solve for the second variable. ...<span>Step 1: Solve one of the equations for either x = or y = . - Google.</span></span>
Answer:
(2,1) for number 1 and (3,-4) for number 2
Step-by-step explanation:
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33 is composite
49 is composite
21 is composite