a+b=19 and a-b=7 then find a
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Answered by
2
Answer:
a=13
Step-by-step explanation:
a+b=19
a-b=7
13+6=19
13-6=7
Answered by
2
Answer:
Step-by-step explanation:
a+b = 19 ------------------ 1
a-b = 7 ------------------2
Subtract equation 1 - 2
We get
2b = 12
b = 6
Substitute value of b in equation 1 or 2
a = 19-6 = 13
a = 13
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