Solve: If x+y=10 and x-y=2 then x = ____?
- 6
- 8
- 4
- None of these
Explanation
Add the two equations: (x + y) + (x - y) = 10 + 2 ⇒ 2x = 12 ⇒ x = 6
Subtracting gives y = 4, confirming the solution.
Add the two equations: (x + y) + (x - y) = 10 + 2 ⇒ 2x = 12 ⇒ x = 6
Subtracting gives y = 4, confirming the solution.
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