Answer:
24
Step-by-step explanation:
subtract 90-66
Answer:

Step-by-step explanation:
You move the decimal place over 6 times for the first equation and 5 for the second equation.
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Answer:
679476947 + 387947597 =1067424544
Step-by-step explanation:
Hope this helps :)
The answer is Angle T = angle N
{-2x-5y=13
<u>{2x-5y=17 </u>(+)
<em /> -2x+2x-5y-5y=13+17
-10y=30 /:(-10)
y=-3
2x-5y=17
2x-5*(-3)=17
2x+15=17
2x=2
x=1
<em>Solution: (1; -3)</em>