Use substitution to solve the system of linear equations.{-x+y=5 4x+y=10} in your final answer, include all of your work.

Solve for a variable in one of the equations and then use that equality to substitute into the other equation.

1st Eq.

-x + y = 5

y = 5 + x

Substitute this in for "y" in 2nd Eq.

2nd Eq.

4x + y = 10

4x + (5+x) = 10

4x + 5 + x = 10

5x + 5 = 10

5x = 10 - 5

5x = 5

x = 5/5

x = 1

the least value out of the data shown is 5, maybe if you post a picture with it i could a little more.

step-by-step explanation:

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.