25 = -7 (x+5) + 5x
x = -5
x = 5
x= -30
x = 30

you can use calculator soup it helps alot and it has different calculators

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system