get each variable by itself on one side of the equation.
x-45=90
n+23.4=36.9
I'll show you how to work this kind of problem.
n+23.4=36.9
You want to get the knowns on one side and the unknown on the other side.
Subtract 23 from both sides.
n = 36.9 - 23.4
n = 13.5
I'll be glad to check your work on the first problem.
Note: you'll need to add 45 to both sides.
13 ;-5
mrow
To get each variable by itself on one side of the equation, you can follow these steps:
1. x - 45 = 90:
- Start by isolating the variable x. To do this, you need to eliminate the constant term of -45 on the left side. You can achieve this by adding 45 to both sides of the equation:
x - 45 + 45 = 90 + 45
x = 135
The value of x is 135.
2. n + 23.4 = 36.9:
- Begin by isolating the variable n. To do this, you need to eliminate the constant term of 23.4 on the left side. You can achieve this by subtracting 23.4 from both sides of the equation:
n + 23.4 - 23.4 = 36.9 - 23.4
n = 13.5
The value of n is 13.5.