wanderlustporvida wanderlustporvida

26-02-2017
Mathematics

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How to solve this equation algebraically: Y=2x+1
3x+4y=26

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baabaagreysheep baabaagreysheep

26-02-2017

You can substitute what y is into the second equation, so:
3x + 4(2x + 1) = 26
3x + 8x + 4 = 26
11x + 4 = 26
- 4
11x = 22
÷ 11
x = 2

y = (2 × 2) + 1
y = 5 + 1
y = 5

So you get x as 2 and y as 5, I hope this helps!

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