Question

A)400+2x=4x+200
B)700+3x=600+x
C)1500-5x=2000-100
D)600-5x=11x+1200
E)900-4x= -8x+180
F)400+2x=800+4x
G)600+5x= -x+1200
Por favorazões me ajudem.

Answer 1

a) 2x-4x=200-400
-2x=-200 (-1)
2x=200
x=200/2
x=100

b) 3x-x=600-700
2x=-100
x=-100/2
x=-50

c) -5x=2000-100-1500
-5x=400 (-1)
5x=400
x=400/5
x=80

D) -5x-11x=1200-600
-16x=600 (-1)
16x=600
x=600/16
x=37,5

e) -4x+8x=180-900
-12x=-720 (-1)
12x=720
x=720/12
x=60

f) 2x+4x=800-400
-2x=400(-1)
2x=400
x=400/2
x=200

g)5x+x=1200-600
6x=600
x=600/6
x=100

Bons estudos!!

Answer 2

A) 400 +2x=4x+200

2x-4x= 200-400

-2x= -200

2x=200

x=100

B)700+3x=600+x

3x-x= 600-700

2x=-100

x=-50

C)1500-5x=2000-100

-5x= 2000-100-1500

-5x= 400

5x=-400

x= -80

D)600-5x=11x+1200

-5x-11x= 1200-600

-16x= 600

16x=-600

x=-37,5

E)900-4x= -8x+180

-4x+8x= 180-900

4x= -720

x=-180

F)400+2x=800+4x

400-800= 4x-2x

-400= 2x

x= -200

G)600+5x=-x+1200

5x+x= 1200-600

6x= 600

x= 100