Question

Tìm x biết

Answer 1

1: 26+5x=3x+56

=>5x-3x=56-26

=>2x=30

=>x=30:2=15

2: \(x-2\dfrac{3}{5}=9,13+1\dfrac{1}{4}\)

=>\(x-2,6=9,13+1,25\)

=>x-2,6=10,38

=>x=10,38+2,6=12,98

Answer 2

a)26 + 5x = 3x + 56

5x – 3x = 56 – 26

2x = 30

x = 30 : 2 = 15

b) x−235=9,13+114�−235=9,13+114

$x-2,6=9,13+1,25$

    x-2,6=10,38

    x=10,38+2,6=12,98