math(algebra 1)

posted by .

how do u answer this? please step by step
*graph and check to solve the linear system
Thank you very very much!!! :)

  • math(algebra 1) -

    y = -x + 3
    y = x + 1

    y + x = 3
    y - x = 1

    to eliminate the variable x, add the 2 equations together. Since x + -x = 0, the x variable is eliminated

    y + x = 3
    y - x = 1
    2y = 4
    y = 2

    to find x, substitute y = 2 in
    y + x = 3
    2 + x = 3
    x = 1

    x = 1, y = 2
    y - x = 1
    2 - 1 = 1
    1 = 1

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Algebra

    Can you please give an example step by step of how to solve a system of linear equations in three variables?
  2. Algebra 2

    can someone show me how to do it step by step please! Use a graph and table to solve each system. check your answer {y+x=5 {3x-5y=-1
  3. Chemistry (URGENT)

    In order to analyze the waste water containing Co^2+ from a manufacturing process, 1.0L of water was evaporated to 10.0mL, then placed in a spectrophotometer tube. The absorbance was found to be 0.20. Using your calibration curve, …
  4. Algebra 1

    -3x + 6 < 21 I need help in solving this problem step by step. Can anyone help, please?
  5. Algebra 1

    Solve this 5y+4x=4. Can someone please help me solve this step by step. I am learning,but It always helps clear things when things are explain. However, I am grateful for any help anyone can provide me. Thank you so very much. Your …
  6. calculus--please help!!

    Solve the inequality. x^3+9x^2-108 less than or equal to 0. Then write in interval noation. Please can you show me step by step on how you got the answer. I have tries and I am very confused.
  7. Math

    Hi, Could you please show me a step by step worked solution to this question?
  8. Algebra 1--Step-by-Step

    Can someone show me how to solve these step-by-step?
  9. Algebra

    Solve the system of equations and check your solution. x^2+y^2=25 x+2y=10 I tried but I got only the 2 x values 8 plus or minus the square root of 164 all over 2. I know the answer is wrong but I can't find my mistake. Can you show …
  10. Very Urgent Help Here (Math)

    Please solve it step by step. Integrate: ∫(x^2/(√(x^2+1))dx

More Similar Questions