Solve the system of linear equations by graphing
X+y=7
-x+y=-7

Subtract x from both sides of the equation.

y=7−x

−x+y=−7

Add x to both sides of the equation.

y=7−x

y=−7+x

Create a graph to locate the intersection of the equations. The intersection of the system of equations is the solution.

(7,0)

Step-by-step explanation:

step-by-step explanation:

so the possibilities of the measurement of the side of the triangle are either it is longest side or not the longest side

when it is the longest side

s < 25 + 35s < 60

if it is not the longest side

35 < 25 + s10 < sso 10 < s < 60so the perimeter70 < p < 130