Step-by-step explanation:
3x -20= -2x +10
or,5x=30
or,X=30/5
or,X=6
Y= -2×6 + 10
= -2
therefore solution is (6, -2)
Answer:
n=4p
Step-by-step explanation:
18n-7p-15n=5p
3n-7p=5p
3n=5p+7p
3n=12p
n=12p/3
n=4p
Answer:
The solutions are


Step-by-step explanation:
we have

Group terms that contain the same variable, and move the constant to the opposite side of the equation

Factor the leading coefficient

Complete the square. Remember to balance the equation by adding the same constants to each side


Rewrite as perfect squares


square root both sides




Answer:
The answer is 37
Step-by-step explanation:
180- 143= 37
The car is going 180 kph. In three hours the car would travel 540 kilometers. Hope this helps.