Answer:
C
Step-by-step explanation:
six plus four is ten
six minus four is 2
The variables of the system of equation are as follows;
a = 6
b = 4
a + b = 10
a - b = 2
add the two equation
Therefore,
2a = 12
divide both sides by 2
a = 12 / 2
a = 6
Hence,
6 - b = 2
6 - 2 = b
b = 4
learn more on system of equation here; https://brainly.com/question/13729904
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