Solve for y in y = 8x - 5 if x = -1
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Hello there!
In the equation y = 8x - 5, let's replace 'x' with -1.
The equation should now look like this:
y = 8*(-1) - 5
Let's apply PEMDAS to this equation to solve for y.
We do not have P or E, so we must multiply.
8*(-1) = -8
Our equation has taken one step. Let's take a look at it now.
y = -8 - 5
We now only have one step remaining - subtraction.
Remember when you subtract from a negative, you have the same concept as adding two positive numbers.
Subtract 5 from -8.
y = -13 is your solution for y.
I hope this helps!
-Ekansh Nimbalkar
In the equation y = 8x - 5, let's replace 'x' with -1.
The equation should now look like this:
y = 8*(-1) - 5
Let's apply PEMDAS to this equation to solve for y.
We do not have P or E, so we must multiply.
8*(-1) = -8
Our equation has taken one step. Let's take a look at it now.
y = -8 - 5
We now only have one step remaining - subtraction.
Remember when you subtract from a negative, you have the same concept as adding two positive numbers.
Subtract 5 from -8.
y = -13 is your solution for y.
I hope this helps!
-Ekansh Nimbalkar
GokJr3:
good explanation
Thanks!
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