Had trouble reading your post. It's important that you separate each equation with plenty of spaces, or, b etter yet, type only one equation per line:
<span>x-y=19 -2x+y/6=28 should be:
</span><span> x-y=19
-2x+y/6=28
Does (-31,-56) satisfy this system? Is (-31) - (-52) = 19? No. Move on to the next system and check again whether or not (-31, -56) is a solution.</span>
x/2 - 5 =3
add 5 to each side. this is the addition property of equality
it says when we add the same thing on both sides of the equation, we are not changing the value of the equation
we are using this to get the variable on one side and the constant on the other
x/2 -5+5 = 3+5
x/2 =8
multiply each side of the equation by 2
we are using the multiplication property of equality
it says when we multiply each side of the equation by the same thing, we are not changing the value of the equation
x/2 *2 = 8*2
x = 16
Her rate of speed is 12.075 miles an hour
Answer:b
Step-by-step explanation:
because you need to multiplay 7 times x and then do the x to the 2 power then add
Answer:
idk im doing to same thing in class im confused too
Step-by-step explanation: