Posted by Sarah on Wednesday, October 30, 2013 at 9:01pm.
One more than 3 times a number is the same as 5 times the number, decreased by 15. Find the number.
• Assign the variable
• Write an equation
• Solve equation

Math urgent  Ms. Sue, Wednesday, October 30, 2013 at 9:04pm
x = variable
3x + 1 = 5x  15
16 = 2x
? = x

Math urgent  Anonymous, Wednesday, October 30, 2013 at 9:04pm
1 + 3x = 5x  15
1 + 3x3x = 5x3x  15
1 = 2x  15
1+15 = 2x  15+15
16 = 2x
16/2 = 2x/2
8 = x or x = 8

Math urgent  kuai, Wednesday, October 30, 2013 at 9:06pm
3p+1 = 5p15
3P+ 1+15 = 5P 15 +15
3p +16 = 5p
3p3p+16 = 5p 3p
16 = 2p
p = 8
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