Final answer:
To find the value of x, the expressions (4x+1) and (2x+4) were added together and set equal to 83. Solving this equation yielded the answer x = 13.
Step-by-step explanation:
The student has asked to find the value of x when two expressions (4x+1) and (2x+4) sum up to 83. To find x, we add the two expressions together and set them equal to 83:
4x + 1 + 2x + 4 = 83
Combining like terms, we get:
6x + 5 = 83
Subtracting 5 from both sides, we have:
6x = 78
Dividing both sides by 6 gives us:
x = 13
Therefore, the correct answer is c) x=13.