Question

Solve for x.X + 84x + 7Since the angles form a linear pair,we may combine their equationsand set them equal to 180°.X + 8 + 4x + 7 = 1805x + [?] = 180Hint: Combine like terms without a variable.Enter the value of the constant.

Answer 1

$x+8+4x+7=180^0\text{ (sum of angles on a straight line)}$

By collecting like-terms, we have:

$x+4x+8+7=180^0$

Thus, we have:

$5x+15=180^0$

Hence, the value of the constant is 15