Question

Please look at the picture and answer it thank you.

Answer 1

x = 17

Explanation:

The sum of all angle measures in any triangle is 180 degrees.

• Thus, 23 + 5x - 18 + 90 = 180.

Step 1: Simplify both sides of the equation.

• 
  `(5x)+(23+90-18)=180`
• 
  `5x+95=180`

Step 2: Subtract 95 from both sides.

• 
  `5x+95-95=180-95`
• 
  `5x=85`

Step 3: Divide both sides by 5.

• 
  `5x/5=85/5`
• 
  `x=17`

Step 4: Check if solution is correct.

• 
  `(5*17-18)+23+90=180`
• 
  `67+23+90=180`
• 
  `180=180`

Thus, x = 17.