Answer:
x=4
Step-by-step explanation:
4x + 7y= 51
We replace y by 5 and determine x.
4x+7×5=51
4x+35=51
4x=51-35
4x=16
x = 4
<u>Step 1: Substitute 5 for y and solve </u>
4x + 7(5) = 51
4x + 35 = 51
<u>Step 2: Subtract 35 from both sides </u>
4x + 35 - 35 = 51 - 35
4x = 16
<u>Step 3: Divide both sides by 4 </u>
4x / 4 = 16 / 4
<em>x = 4 </em>
Answer: x = 4
Answer: 7
The 3 angles when added together make a straight line which is 180 degrees. To find x subtract the 2 known angles from 180.
The answer would be x = 180 - (67 + 52)
Below is an attachment containing the solution.
Answer: 108pi
36pi times 3
this is correct btw
