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Lillie Santos
Mathematics
11 August, 23:34
5. Solve each equation.
a. - 1/8d - 4 = - 3/8
+4
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2
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Salma Hill
11 August, 23:52
0
-1/8d-4 = - 3/8
+4 + 4
-1/8d=29/8
d = - 29
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Jonathon Stephens
12 August, 00:02
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-1/8d - 4 = - 3/8
move - 4 to the other side
sign changes from - 4 to + 4
-1/8d-4+4=-3/8+4
-1/8d=-3/8+4
pretend that 4 has a denominator which is 1
-1/8d=-3/8+4/1
find the common denominator for 4/1 which is 8
multiply by 8 for 4/1
4 (8) / 1 (8) = 32/8
-1/8d=-3/8+32/8
-1/8d=29/8
multiply both sides by - 8/1 to get + d
-1/8d*-8/1=29/8 (-8/1)
Cross out 8 and - 8, divide by 8 and then becomes 29*1*-1=-29
Cross out - 1/8 and - 8/1, divide by 8 and 1. Then becomes 1*1*d=d
Answer:
d=-29
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