1 answer:
<em>3x - y = 5</em>
- Step-by-step explanation:
<em>2x + y = 10 | ×2</em>
<em>x - 2y = -5</em>
<em />
<em>4x + 2y = 20</em>
<em>x - 2y = -5</em>
<em>add</em>
<em>4x + x + 2y - 2y = 20 - 5</em>
<em>5x = 15</em>
<em>x = 15 : 5</em>
<em>x = 3</em>
<em>replace x</em>
<em>4(3) + 2y = 20</em>
<em>12 + 2y = 20</em>
<em>2y = 8</em>
<em>y = 8 : 2</em>
<em>y = 4</em>
3x - y =
= 3(3) - 4
= 9 - 4
= 5
You might be interested in
Answer:
guu khakwbejvejevsjvdkdbeoebejdhkehekejee
2x+15+x+20+30+25=180
3x+90=180
x=90/3
x=30
New angles
75,50,55
The smallest angle is 50
The answer is 6. Hopes that helps :)
Answer:
5.75342
Step-by-step explanation:
This conversion of 300 weeks to years has been calculated by multiplying 300 weeks by 0.0191 and the result is 5.7534 years.
Answer:
i think 6 or 12 let me know which is correct
Step-by-step explanation:
