Answer:
3(x-1)+7=11
3x-3-7=11
3x-10=11
3x=11+10
x=21/3
x=7
Step-by-step explanation:

Always do what's in parentheses first:

Then do multiplication and division:

Then addition and subtraction last:
1/2 ton would be the correct answer since a single ton is 2,000 lbs
Here is the required diagram .

Alternate angles are equal .
<h3>Isolate y on both equations then equate </h3>
- x²-3x+2y=-4
- 2y=-x²+3x-4
- y=-x²/2+3/2x-2
Now you can equate it with second one to get x