Question

5. Solve the following:
(a) 6(x - 5) = 40
(b 3x=22+7x​

Answer 1

Answer:

a)6(x-5)=40

6x-30=40

6x=40-30

6x=10

x=10/6

x=10÷2/6÷2

=>x=5/3

b) 3x=22+7x

3x-7x=22

-4x=22

x= 22/-4

x= 22÷2/-4÷2

=> x=11/-2

Answer 2

Answer:

$6(x - 5) = 40 \\ = > 6x - 30 = 40 \\ = > 6 x = 40 + 30 \\ = > 6x = 70 \\ = > x = \frac{70}{6} \\ = > 11.666666..... \: or\: \: 11.67$

$3x = 22 + 7x \\ = > - 22 = 7x - 3x \\ = > - 22 = 4x \\ = > x = - \frac{22}{4} \\ = > - 5.5(ans)$

$\huge\fbox\red{\fbox\green{Done \: by \: Aritra \: Kar}}$