Ask Question

Solve by substitution 2y=x+1 - 2x-y=7

+2
Answers (1)
  1. 28 May, 12:29
    0
    -2x-y=7

    Add 2x to both sides

    -y = 2x+7

    Multiply both sides by-1

    Y = - 2x-7

    2y=x+1

    2 (-2x-7) = x+1

    -4x - 14. = x+1

    Add 14 to both sides

    -4x=x + 15

    Subtract x from both sides

    -5x=15

    X=-3

    2y = -3+1

    -2y=-2

    Y=1

    (-3,1)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Solve by substitution 2y=x+1 - 2x-y=7 ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers