Answer:
b = 4a
Step-by-step explanation:
Given
a = b
Multiply both sides by 4 to clear the fraction
4a = b
X + 4 = 4x + 2
let’s put the x’s on one side and the numbers on the other
(whatever you do to one side, you have to do to the other)
x + 4 = 4x + 2
- 4 - 4x
x - 4x = 2 - 4
-3x = -2
—— ——
-3 -3
x = 2/3
to check this, we can put 2/3 in for x
(2/3) + 4 = 4(2/3) + 2
4 2/3 = 8/3 + 2
4 2/3 = 2 2/3 + 2
and there we can see both sides equal 4 and 2/3, making it true
Plug -2 into the first expression and you get -8 as the answser
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Each student would get half a muffin because 18 times two is 36. If you wanted to split it evenly than you have to give each student a half of muffin.
Hope this helps!