ceciliazimba90
ceciliazimba90 ceciliazimba90
  • 21-03-2021
  • Mathematics
contestada

simplify: ,3(x-2) + 2(2x+5) =32, a+2a+7a​

Respuesta :

Dandydestiny
Dandydestiny Dandydestiny
  • 21-03-2021

Answer:

x = 4, 10a

Step-by-step explanation:

3(x-2) + 2(2x+5) = 32

3x - 6 + 4x + 10 = 32

3x + 4x + 10 - 6 = 32

7x + 4 = 32

7x = 32 - 4

7x = 28

Divide both side by 7

x = 4

a + 2a + 7a

They are common because the have the same variables.

'a' is with a coefficient of 1

You add the coefficient and attach the variable to it

Therefore,

a + 2a + 7a = 10a

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