-5x + y = -5.....multiply by -2
-4x + 2y = 2
---------------
10x - 2y = 10 (result of multiplying by -2)
-4x + 2y = 2
-----------------add
6x = 12
x = 12/6
x = 2
-5x + y = -5
-5(2) + y = -5
-10 + y = -5
y = -5 + 10
y = 5
solution is (2,5)
89+90=171. keep in mind that increased or increased by means to add
Answer:
What I think are the answers are C,D, and A, hope this helps.
Step-by-step explanation:
The power of 4 means to move the decimal 4 places to the right. 6.3 x 10^4
63000