K=4
add seven on both sides
2x-4y=7
add 4y on both sides
2x=7+4y
divide 2 on both sides
x=7+4y/2
plug that into original equation
2(7+4y/2)-4y-7=0
7 and 4y cancel out
2(2)=0
4=0
3x -7 = 14
3x - 7 (+7) = 14 (+7)
3x = 21
3x/3 = 21/3
x = 7
hope this helps
Answer:
If what the sin 90º
Step-by-step explanation:
The radius of the sun is approximately 700,000 kilometers<span>. What is the </span>volume of the sun? V = F | m. 4)(700000km<span>)? V = 1.436 X 1018 km3. The </span>volume of the sun is approximately<span> 1.436 X 1018 km². 6. An ice cream cone has </span>a diameter<span> of 3 inches.</span>
8.9 x 10^-5 in scientific notation
