Substitute what you know y is equal to into the equation:
y = x + 2
3/2x - 2 = x + 2
Then you can simplify your equation by multiplying both sides by 2 to eliminate the fraction which will give you:
3x - 4 = 2x + 4
Add the -4 to the other side to get 8 and subtract the 2x from the 3x so you have:
x = 8 Now solve for y by substituting your value for x into the other equation:
y = 3/2(8) - 2 Simplify by combining your numbers and you get:
y = 10 Check your answer by substituting y and x into the original equation:
(10) = (8) - 2
Correctly done! So your answers are x = 8 and y = 10
Answer:
(-1;-3)
Step-by-step explanation:
Answer: Only 16
Step-by-step explanation:
The square roots of 5 & 20 are long decimals.
The square root of 49 is 7 but 7 has a decimal square root.
The square root of 16 is 4, 4 is 2 squared.
So 16 is a perfect square.
