Question

x+100=300-600

x+700=900-700

Answer 1

x + 100 = -300

      x = -300 -100

      x = -400

x + 700 = 900 - 700

x + 700 = 200

         x = 200 - 700

        x = -500

Answer 2

_x+100=-300

_x=-300-100

_x=-400

_x+700=200

_x=200-700

_x=-500

Answer 3

x + 100 = 300 - 600

x + 100 = - 300

x          = - 300 - 100

x          = - 400

Answer 4

a) x=-400

b) x= -500

Answer 5

x+100=300-600

x+100=-300

x       = -300 - 100

x       = -400

x+700=900-700

x+700=200

x       = 200-700

x       = -500

k nha! 

Answer 6

x + 700 = 900 - 700

x + 700 = 200

x           = 200 - 700

x           = - 500

Answer 7

x+100=300-600

x+100=-300

x=-300-100

x=-400

x+700=900-700

x+700=200

x=200-700

x=-500