solve the equation, 2D + 3 = 13,
12E - 3 = 0
first one:
2D + 3 = 13
2D = 10
D = 5
second one:
12E - 3 = 0
12E = 3
E = 3/12 = 1/4
To solve the equation 2D + 3 = 13, you need to isolate the variable D. Here are the steps to solve it:
1. Start by subtracting 3 from both sides of the equation: 2D + 3 - 3 = 13 - 3.
This simplifies to 2D = 10.
2. To isolate the variable D, divide both sides of the equation by 2: 2D/2 = 10/2.
This gives us D = 5.
Hence, the solution to the equation 2D + 3 = 13 is D = 5.
Now, let's solve the equation 12E - 3 = 0.
1. Start by adding 3 to both sides of the equation: 12E - 3 + 3 = 0 + 3.
This simplifies to 12E = 3.
2. To isolate the variable E, divide both sides of the equation by 12: 12E/12 = 3/12.
This gives us E = 1/4 or E = 0.25.
So, the solution to the equation 12E - 3 = 0 is E = 1/4 or E = 0.25.