Answer: x = 20.
Step-by-step explanation:
x and (3x + 10) combine to form a right angle, shown in the diagram by the small square joining the perpendicular lines.
Right angles are 90 degrees, so you can add both angles to get 90:
A equals 4 and
B equals 1
Answer: 6
Step-by-step explanation:
4+(x-3) = 2x-5
x+1 = 2x-5
x=6
<em>- 8n + 9</em>
- <em>Step-by-step explanation:</em>
<em>Hi there ! </em>
<em>A - B = ( -3n + 2 ) - (5n - 7)</em>
<em>= - 3n + 2 - 5n + 7</em>
<em>= - 8n + 9</em>
<em>Good luck !</em>