Question

Rezolvam
a) 5(1-2x)+1=4(x+3)+8
b) |2x-3|=11​

Answer 1

Răspuns:

Explicație pas cu pas:

a) 5(1-2x)+1=4(x+3)+8

5 - 10x + 1 = 4x + 12 + 8

6 - 10x = 4x + 20

4x + 10x = 6 - 20

14x = -14

x = -14 : 14 = -1

b) |2x-3|=11​

2x - 3 = 11

2x = 3 + 11 = 14

x = 14 : 2 = 7

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2x - 3 = -11

2x = 3 - 11 = -8

x = -8 : 2 = -4