SOLUTION: Asking for some gentle guidance please.
Solve each equation. # 43 on page 147.
0.5x+2 2.25x+27
_______ = ___________ _
3 9
In case this look
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Question 184903This question is from textbook Beginning Algebra
: Asking for some gentle guidance please.
Solve each equation. # 43 on page 147.
0.5x+2 2.25x+27
_______ = _____________
3 9
In case this looks bad.... 0.5x+2 OVER 3 = 2.25x+27 OVER 9
I have done the following:
9(0.5x+2) = 3(2.25x+27)
Do I need to move the decimals? It does not seem to matter thus far in getting the correct answer. I know to cross cancel but with the decimals I am getting a tad confused perhaps.
4.5x+18 = 6.75x+81
Subtract 4.5x from both sides
18= 2.25x+81
Subtract 81 from both sides
-63 = 2.25x
Divide -63 from both sides
and I get the wrong answer which I hope you see what I am doing wrong!
The answer is to be {-28}
I am over thinking this I am sure and it is late. I shall leave this and hope for a pleasant, helpful push in the correct direction to solve this in the AM.
Thank you for your time and help!
moly
This question is from textbook Beginning Algebra
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
(.5x+2)/3=(2.25x+27)/9
1.5x+6=2.25x+27 Multiply each side by 9 (LCM) to eliminate fractions.
-.75x=21 add -2.25-6 to each side.
x=-28 divide each side by -.75
.
Ed
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