Question

Determinati nr x din:9,3=2x+3,25 ;2,5(3x÷1)=20 ;3x÷1,84=9,8 ​

Answer 1

a)

$9.3 = 2 \times x + 3.25$

$6.05 = 2 \times x$

$3.025 = x$

b)

$2.5 \times \frac{3 \times x}{1} = 20$

$2.5 \times 3 \times x = 20$

$7.5 \times x = 20$

$x = 2.(6)$

c)

$\frac{3 \times x}{1.84} = 9.8$

$3 \times x = 18.032$

$x = 6.010(6)$