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To solve multi-step problems, begin with the variable (the unknown number) and work step by step.
8 less than triple the sum of half a number and 7 Multi-step Example:
How could you represent (show) "a number" that you don't know? + ÷ h 77 h can represent "a number".
What is half "a number" (half of h) 2h h/3 h2 h/2 h/2 is half a number. What is the sum of half a number and 7? h/7 +2 h/2 +7 h/2-7 h/2 + 7/2 The sum of half a number and 7 is h/2 + 7. Show triple the sum of half a number and 7. 3(h/2 + 7) 3h/2 +7 h/2 + 3(7) h/2 +7+7+7 Triple the sum of half a number and 7 is 3(h/2 +7). What is 8 less than triple the sum of half a number and 7 8-3(h/2+7) 8 ÷3(h/2+7) 3(h/2+7)-8 3(h/2+7)÷8 What is 5 less than double the difference of 7 and twice a number?
Start with twice a number: m2 2m m/2 3m Twice a number is 2m.
What is the difference of 7 and twice anumber ? 7/2m 2m-7 2m/7 7-2m The difference of 7 and twice a number is 7-2m.
Double the difference of 7 and twice a number. 2(7-2m) 3(7-2m) 2(7)-2m 7-2(2m) Double the difference of 7 and twice a number is 2(7-2m).
What is 5 less than double the difference of 7 and twice a number
5-2(7-2m) 5×2(7-2m) 5÷2(7-2m) 2(7-2m)-5 |