Question

Simplify the following:

i) 1+ (13)3-(12)3 ➗38 ii) 1x- 3x=5 2x- 3
plz send photo of answer .

Answer 1

$(i) \: \: 1 + (13)3 - (12)3 \div 38$

$1 + 39 - 36 \div 38$

$1 + 39 - \frac{36}{38}$

$1 + 39 - \frac{18}{19}$

$\frac{19 + 741 - 18}{19}$

$\frac{742}{19}$

$(ii)1x - 3x = 5(2x) - 3$

$- 2x = 10x - 15$

$- 2x - 10x = - 15$

$- 12x = - 15$

$x = \frac{15}{12}$

$x = \frac{5}{4}$

Answer 2

Step-by-step explanation:

1)

=1+13×3-12×3÷13

=40-36÷13

=4÷13

=0.30

2)

1x-3x=52x-3

52x +2x=3

54x=3

x=3/54

x=1/18