Which expression is equivalent to "-4 - (-5)"? 5 - (-4) 5 + 4 -4 + 5 4 + 5
2 answers:
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Answer:
Given the system of equations:
.....[1]
.....[2]
We can write equation [1] as;
2(y-x) = 12
Divide both sides by 2 we get;
or
y = x+6 ....[3]
Substitute equation [3] in [2] we get;
Subtract 36 from both sides we have;
Combine like terms;
or
By zero product property:
x =0 and x+6 = 0
or
x = 0 and x = -6
now, substitute the given values of x in [3] we have;
for x = 0
y = 0+6 = 6
for x = -6
y = -6 + 6 = 0
Therefore, the solution for the given system of equation is, either (0, 6) or (-6, 0)
