two adjacent angles have a sum of 100 degrees. the angles have measures <1 = 20 degrees and <2 = (3x + 15). what equations can be used to solve for x?
The sum of two adjacent angles is 100 degrees, so we can write the equation:
<1 + <2 = 100
Given that <1 = 20 degrees and <2 = (3x + 15), we can substitute these values into the equation:
20 + (3x + 15) = 100
Simplifying the equation, we have:
35 + 3x = 100
To solve for x, we can subtract 35 from both sides:
3x = 100 - 35
3x = 65
Finally, dividing both sides by 3, we get the equation:
x = 65/3
So, the equation to solve for x is x = 65/3.
3 x 21 + 35 = 100
Apologies for the incorrect response. You are correct, the equation should be:
3x + 35 = 100
To solve for x, we can isolate the variable by subtracting 35 from both sides:
3x = 100 - 35
3x = 65
Finally, dividing both sides by 3, we get the equation:
x = 65/3
So, the correct equation to solve for x is x = 65/3.
65 divided by 3
65 divided by 3 is equal to 21.67.
5x + 12 = 112
To solve for x in the equation 5x + 12 = 112, we need to isolate the variable x.
First, we subtract 12 from both sides:
5x = 112 - 12
5x = 100
Next, divide both sides by 5:
x = 100 / 5
x = 20
Therefore, the equation 5x + 12 = 112 can be solved by x = 20.