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Beckett Barron
Mathematics
9 November, 06:19
Solve the following equation y=3/2x-5 when y=7
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Doodles
9 November, 06:47
0
Step-by-step explanation:
Step 1: 7=3/2x-5
(it's given that y=7, so we can substitute 7 for y)
Step 2: 12=3/2x
(Add by 5 on both sides, we have to isolate the "x" in order to find it's value)
Step 3: 12 (2x) = 3
(multiply by 2x on both sides)
Step 4: 24x=3
Step 5: x=3/24
(we divide by 24 on both sides to get the "x" alone)
Step 6: x=1/8
(3/24 can be further simplified into 1/8, so x=1/8)
Check:
we can check if the answer [x=1/8] is right by substituting 1/8 for x in the equation y=3/2x-5, if y=7 after solving, then we know the answer is right.
step 1: y=3/2 (1/8) - 5
(substitute 1/8 for x and then simplify that fraction)
step 2: y=12-5
Step 3: y=7
The answer 1/8=x can now be confirmed.
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Timber
9 November, 06:49
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X=8
Step-by-step explanation:
7 = 3/2x - 5
Add 5 to each side
12 = 3/2x
Simplify
12 = 1.5x
Divide each side by 1.5
8 = x
Check the solution
7 = 3/2 (8) - 5
7 = 12 - 5
7 = 7
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