Answer:
UV=142
Step-by-step explanation:
21x-13=10x+31
+13 +13
21x=10x+44
-10x=-10x
11x=44
÷11 ÷11
x=4
now substitute 4 in place of x (only have to solve one)
21(4)-13= 71
now multiply your answer by 2
71×2=142
Answer:
A, 2 is the y intercept not the zero
\left[x \right] = \left[ 3\right][x]=[3] totally answer
The answer to question 18 is C. and the answer to question 19 is B
Answer:
t+5
Step-by-step explanation:
We can combine like terms, and get t+(4+3-2) to get t+5.
Hope this helped!