Posted by **please i need help!!! i dont get it** on Monday, January 17, 2011 at 6:52pm.

how do u answer this? please step by step

*graph and check to solve the linear system

y=-x+3

y=x+1

Thank you very very much!!! :)

- math(algebra 1) -
**helper**, Monday, January 17, 2011 at 7:20pm
y = -x + 3

y = x + 1

rewrite

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

ADD

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

CHECK

x = 1, y = 2

y - x = 1

2 - 1 = 1

1 = 1

## Answer This Question

## Related Questions

- Algebra 2 - can someone show me how to do it step by step please! Use a graph ...
- Algebra 1--Step-by-Step - Can someone show me how to solve these step-by-step? ...
- Algebra - Can you please give an example step by step of how to solve a system ...
- Algebra 1 - -3x + 6 < 21 I need help in solving this problem step by step. ...
- Algebra 1 - Solve this 5y+4x=4. Can someone please help me solve this step by ...
- Algebra - Solve the system of equations and check your solution. x^2+y^2=25 x+2y...
- Math - Hi, Could you please show me a step by step worked solution to this ...
- Chemistry (URGENT) - In order to analyze the waste water containing Co^2+ from a...
- Very Urgent Help Here (Math) - Please solve it step by step. Integrate: ∫(...
- Algebra help - f(x)=x^3-4x^2-x+4 How do I find the x-intercept for this? This is...

More Related Questions