Let the integers be x and x+1.
x = 6 + 2(x + 1)
x = 6 + 2x + 2
x = -8
Hence, the integers are -8 and -7.
Answer:
9 years old
Step-by-step explanation: All you have to do is 15-6=
Answer: 15 minutes
Step-by-step explanation:
60 / 4 = 15
15 * 3 = 45
45 / 3 = 15
Answer:
y = 21
x = 74
Step-by-step explanation:
-x + 4y = 10
x - 3y = 11
Let the first eqn be eqn 1 and the second be eqn 2
ie
- x + 4y = 10 --------eqn 1
x - 3y = 11 ----------eqn 2
From eqn 1, make x the subject of the formula
Carrying x over the equal to in order to change the sign from - to +
4y - 10 = x
Substitute the value of x in eqn 2
4y - 10 - 3y = 11
Collecting like terms
4y - 3y = 11 + 10
y = 21
The value of y is 21
Then, substitute the value of y into eqn 1
-x + 4y = 10
-x + 4(21) = 10
-x + 84 = 10
84 -10 = x
In order to get rid of the - sign
x = 74
Therefore,
x = 74
y = 21
Answer:
what do you need help with
Step-by-step explanation:
