By the fundamental theorem of calculus,

So we have



Answer:
- Collect like terms and simplify
- Subtract 7 from both sides
Step-by-step explanation:
METHOD 1

METHOD 2

So that is what we call a ratio and it looks like this
Answer:
what do you have to do this?
Step-by-step explanation:
what grade and type of math is this?
Answer:
143
Step-by-step explanation:
x-31=112
Add 31 to both sides,
x - 31 = 112
+31 +31
-31 and +31, cancel out so we're left with...
x = 143