They're equal length, so add 18 and 18 to get 36.
Two significant Figures I believe because you want to go with the least amount of sig figs that are already in your problem which would be 2 in 7500 because the zeros are not significant
Answer:
is there more to the question? this does not make seince
Step-by-step explanation:
Answer:
-4
Step-by-step explanation:
-129 = 6(7 + 7x) - 3
Distribute the 6 into the parentheses.
-129 = 42 + 42x - 3
Add like terms.
-129 = 39 +42x
Subtract 39 from both sides.
-168 = 42x
Divide 42 from both sides.
-4 = x
3x + 4y = 12
To find x subtract 4y from both sides
3x = 12 - 4y
Then divide all terms by 3
3x/3 = 12/3 - 4y /3
So, x = 4 - 4/3y
