5[2(m+4)+8(m-7)]=2[3(5+m)-(21-3m)]

Question

Explain everything, please. It's so long I kept getting lost.

Answer 1

50m -48(5) = 12m -6(2)

38m = 240-12 = 228

m = 228/38

m = 6

check the answer

5[2(6+4) + 8(6-7)] = 2[3(5 +6) -(21-3(6)]

5(20 -8) = 2(33 - 3)

5(12) = 2(30)

60 = 60

voila

Answer 2

Hello Alia;

Let's start it from the parentheses and expand

5[2m + 8 + 8m - 56] = 2[15 + 3m - 21 + 3m]

5[10m - 48] = 2[6m - 6]

50m - 240 = 12m - 12

50m - 12m = 240 - 12

38m = 228

m = 228/38 = 6

I hope there is not a mistake please double check.