Question

d) Convert the following statement into an equation. 1st one is done by me.
i) Twice a number is increased by 10 gives 18.
Let the number be x, then
2x + 10 = 18
ii) 13 is taken away from 4 times a number gives -21.
iii) Difference between a number and 4 gives 7.
3
iv) Sum of 6 and twice a number gives 4.
v) Half of the sum of a number and 8 is increased by 10 gives 70.
vi) One-third of the difference between a number and 9 is decreased by 5 gives 14.
vii) Thrice a number taken away from 42 gives 14.
viii) seven more than eight times a number gives 20.​

Answer 1

Answer:

x=4

Step-by-step explanation:

2x + 10 = 18

because = 18-10 = 8

now x= 8÷2 = 4

now 2x = 2 multiplied by x

therefore 2multiplied by 4 = 8 + 10 = 18

= 2×4+10 = 18