Asked by noelle
System of equations, the addition method
3x-3y=6
3x+3y=0
Whats the answer?
3x-3y=6
3x+3y=0
Whats the answer?
Answers
Answered by
Damon
add the two equations
6 x + 0 = 6
so x = 1
go back for y
3 + 3 y = 0
y = -1
check
3(1)-3(-1) = 3+3= 6 yes
3(1)+3(-1) = 3-3 = 0 yes
6 x + 0 = 6
so x = 1
go back for y
3 + 3 y = 0
y = -1
check
3(1)-3(-1) = 3+3= 6 yes
3(1)+3(-1) = 3-3 = 0 yes
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