Answer:
Step-by-step explanation:
Let the number be x,
2(4+x)= 4x-6
8+2x= 4x-6
Collect like terms
8+6. = 4x-2x
14 = 2x
x = 14/2
x.=. 7
PLEASE GIVE BRAINLIEST.
Answer:
prior to
Step-by-step explanation:
7x - 1 = 20
7 times 3 is 21, 21 minus 1 is 20
Answer:
b. 36 years
Step-by-step explanation:
Today
Nirmala = x years
Rahul = 3x years
In 13 years
Nirmala = 3x + 13 years
Rahul = 2(x+13) - 1
3x + 13 = 2(x+13) - 1
3x + 13 = 2x + 26 - 1
3x + 13 = 2x + 25
3x - 2x = 25 - 13
x = 12
Nirmala = x years
= 12 years
Rahul = 3x years
= 3(12)
= 36 years
The age of Rahul today is 36 years
Answer:
(x,y)=(-1,-4)
Step-by-step explanation:
y=–3x–7
y=x–3
(y=)-3x-7=x-3
-3x-x=-3+7
-4x=4
x=4/(-4)
x=-1
y=x-3
y=-1-3
y=-4
(x,y)=(-1,-4)