Answer:
x = 3
Explanation:
We know that the mass of 5x's and 2 is the same as 17, so we can represent this in the equation:
5x + 2 = 17
To solve for x, we need to isolate x and move everything else to the other side, so:
5x = 17 - 2
When 2 moves to the right side, the operation is the opposite (so the + turns into a - )
So we know that:
5x = 15
5 multiplied by x is 15, so, to move 5 to the other side, we need to divide:
x = 15/5
So:
x = 3