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Now the thing that has been done is that the value of x in the first equation has been replaced by the value of x that is given in the second equation.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.
Perpendicular slope is 4/5
Answer:
Step-by-step explanation:
(√7)²=7
(15/5)²=3²=9
2²=4
so ascending order is -4,2,√7,15/3
A) 3x+4=21
3x=21-4
3x=17
x=17÷3
x= 5.7
Answer:
C. Where the lines intersect each other.
Hope this helps! ♡
