The equation
(y + 5) + y = 6
shows the substitution method being used to solve the system of linear equations. So the correct option among all the options given in the question is option "D".
For a better explanation, let us first write down the two equations given in the question.
x + 5 = 6
and
x = y + 5
Now the thing that has been done is that the value of x in the first equation has been replaced by the value of x that is given in the second equation. this is actually the substitution method of solving equations.
Answer: x=20
Step-by-step explanation: 81 = 3^4, (3^4)^5= 3^(4*5)=3^20. x=20
Answer:
Step-by-step explanation:
Perimeter = 2*(length +width)
P = 2*( x+8 + y-1)
P = 2*(x + y + 7)
P =2x + 2y + 17
75 degrees in full form is 108/5 degrees
Answer:
Step-by-step explanation:
(8 + 2)/(-2 - 1)= -10/3
