exam Maths Puzzle Numerical Ability

Hi! I need some help solving this equation and if possible expressing my answer as on ordered pair.

y=2x+1
x+y=4

Thanks in advance for your help!

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exam Other Question

Which of the ordered pairs
(-7, 2), (1, 0), (-3, -1), (-23, 6)
are solutions for the equation x + 4y = 1?

Thanks so much for your valuable time!! No book. A rectangular field is 260 feet in perimeter.the length is 10 feet more than twice the width.what is the length?