angeljulio885 angeljulio885

21-05-2020
Mathematics

contestada

4. For each equation, determine if =-2 is a solution. Explain or show your reasoning.

a) 10 = 2(x-9)

b) 3(x+4) = 2(x+3) + 4

Respuesta :

21-05-2020

Answer:

a. 14 b. -2

Step-by-step explanation:

a. 10=2x-18

28=2x ; x=14

b. 3x+12=2x+6+4

3x+12=2x+10

x=-2

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