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math help!!!!!!!!!!!!!!!!!! : (?
i need math help.
2(w-3)+5=3(w-1) i know the answer is 2 but dont know how.
3/2 y-y =4+1/2 y
1/4(7+3g) =-g/8
do any u can or all please
2 Answers
- 1 decade agoFavorite Answer
2nd one:
3/2 y - y = 4 + 1/2 y
--
3/2y - 2/2 y = 1/2 y
so we have
1/2 y = 4 + 1/2y .. not solvable... try the first one!
----------------
2w-6 + 5 = 3w -3
2w-3w = -3 -5 +6
-w = -2
w = 2
-----------
3rd:
7/4 +3/4 g = -1/8 g
6/8 g + 1/8 g = -7/4
7/8 g = -7/4
g = -7/4 x 8/7 = -8/4 = -2
----
you can add detail to explain what the 2nd equation is?
is it really?:
(3/2) y -y = 4 +(1/2) y
- calebrules1991Lv 51 decade ago
2(w-3)+5=3(w-1)
2w - 6 + 5 = 3w - 3 distribute
2w - 1 = 3w - 3 add the -6 and 5
add three to both side
2w + 2 = 3w
subtract 2w
2 = w don't need to have 1w and divide
next problem
3/2 y-y =4+1/2 y
subtract the 3/2 from both sides
-y = 4 + -2y
add 2y to both sides
y = 4 (not sure)
next
1/4(7+3g) =-g/8
7/4 + 3/4g = -1/8g (same thing as -g/8)
subtract 3/4g
7/4 = -7/8g
divide -7/8
56/28 = g
1/2 = g