Question

e)-5x+45-89=-90+41? f)10x-20=40+50? g)20-80+2x=10? h)19+2×-13=10-20? i)10X-12+10=+18-20? j)13x-23-45=-7x+12

Answer 1

E) -5x +45 -89 = -90 +41
-5x -44 = -90 +41
-5x = -90 +41 +44
-5x = -5 .(-1)
5x = 5
x = 5/5
x = 1

F) 10x - 20 = 40 + 50
10x = 90 + 20
10x = 110
x = 110/10
x = 1

G) 20-80+2x=10
-60+2x=10
2x=10+60
2x=70
x=70/2
x=35

H) 19+2x-13 = 10-20
2x+6 = -10
2x = -10-6
2x = -16
x= 8

I) 10x-12+10=18-20
10x-2=-2
10x=0
x=0/10

J)13X+7X=12+68
20X=80
X=4