What is the first step to solving for x in the equation 9x-7=10? how would you check your solution

Mathematics

1 answer:

mihalych1998 [28]3 years ago

7 0

Answer:

<h2>In this equation the first step will be to add 7 on the right hand side to isolate the variable term on the one side of the equation. Therefore,</h2>

<h2>Step 2 will be dividing both sides of the equation by 9.</h2>

<h2>.•. we got the value of x!</h2>

You might be interested in

-3x-3y=3 and y=-5x-17

Thepotemich [5.8K]

The solution is (-4,3)
-3x-3y=3
y=-5x-17
so find the y in the first equation in terms of x
-3x-3y=3
-3y=3x+3
y=-x-1
then set the two equations equal to each other
y=-x-1
y=-5x-17
-x-1=-5x-17
4x=-16
x=-4
now put the x into one of the equations
-3(-4)-3(y)=3
12-3y=3
-3y=-9
y=3
so the solution is (-4,3)
to check it, put the points into equations and see if they're correct
-3(-4)-3(3)=3
12-9=3
3=3 correct

3=-5(-4)-17
3=20-17
3=3 correct

5 0

4 years ago

Please help will mark as brainless

Wewaii [24]

Answer:

1. r = $\sqrt[3]{\frac{3v}{4\pi } }$

divide v by 4/3, this is the same as multiplying v by 3/4 so you have 3v/4

then divide v by $\pi$ so you now have 3v/4 $\pi$

then get rid of the ^3 on r by putting the solution for r under a ∛

2. a) The equation might need to be written in terms of a because you may not know the value of a, but you know the value of everything else. If this is the case then you can simply rewrite the equation so that you can plug it all into a calculator and avoid certain possible errors.

s = ut + 1/2 $at^{2}$