Question

me ajudemm!

a) 2(x+3)=30

b) 3.(2x+4=4(x+6)

Answer 1

a) 
 2(x+3)=30
2x+6=30
2x=30-6
2x=24
x=24/2
x=12

b)
    3.(2x+4)=4.(x+6)
6x+12=4x+24
6x-4x=24-12
2x=12
x=12/2
x=6

Answer 2

a)

$2(x + 3) = 30 \\ \\ 2x + 6 = 30 \\ \\ 2x = 30 - 6 \\ \\ 2x = 24 \\ \\ x = \dfrac{24}{2} \\ \\ x = 12$

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b)

$3 (2x + 4) = 4(x + 6) \\ \\ 6x + 12 = 4x + 24 \\ \\ 6x - 4x = 24 - 12 \\ \\ 2x = 12 \\ \\ x = \dfrac{12}{2} \\ \\ x = 6$