tati113 tati113

28-08-2020
Mathematics

contestada

two times the sum of a number and 9 is half the number
Write an equation to represent the phrase

Respuesta :

zarampa zarampa

01-09-2020

Answer:

Equation:

2(a+9) = a/2

Solve:

The umber is:

-12

Step-by-step explanation:

Equation:

2(a+9) = a/2

Solve:

2*a + 2*9 = a/2

2a + 18 = a/2

2a - a/2 = -18

4a/2 - a/2 = -18

3a/2 = -18

a = -18*2/3

a = -12

Check:

2(-12+9) = -12/2

2(-3) = -12/2 = -6

Answer Link

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