Answer:
178/7
Step-by-step explanation:
4x-7+3x+9=180
4x+3x-7+9=180
7x-7+9=180
7x+2=180
7x=180-2
7x=178
x=178/7
The breadth of rectangle in one third of length and perimeter is 80 find the length.
Answer:3
Step-by-step explanation:
Answer:
The answer is 20
Step-by-step explanation:
16 -4(-3) - 8
then we will have
16 + 12 - 8 ( that is because -×- = + and 4×3 = 12)
The answer is 28 - 8 = 20
Correct Question :-
- If y = - 7 & x = - 21 , determine x when y = 9
Given :-
We need to find :-
Solution :-
Using proportion ,
By means & extremes ,
=> - 7x = - 21 × 9
=> x = ( - 21 × 9 ) / - 7
=> x = 3 × 9
=> x = 27
Hence , when y = 9 → x = 27