Question

F)x+x-4 =17-2x+1
G)3,4x-2,6 = x-0,92

Answer 1

f)x+x-4= 17-2x+1
2x+2x= +4+17+1
4x=22
x=22÷4
x=5,5



g)3,4x-2,6=x-0,92
3,4x-x= +2,6-0,92
2,4x=1,68
x=1,68÷2,4
x=0,7

Answer 2

F)

x + x - 4 = 17 - 2x + 1

2x - 4 = 18 - 2x

2x + 2x = 18 + 4

4x = 22

x = 11/2

G)

3,4x - 2,6 = x - 0,92

3,4x - x = 0,92 + 2,6

2,4x = 1,68

x = 0,7

forma alternativa:

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