39+8a=3(6a+2)+a, 29+4k=3(k+7), -4(2-8m)=-36+4m, 7x+32=2(6x+6)

Question

I need help with this question

Answer 1

39+8a=3(6a+2)+a 39+8a=18a+6+a 8a-18a-a=6-39 -9a/-9=-33/-9 a=-33/-9

Answer 2

29+4k=3(k+7) 29+4k=3k+21 4k-3k=21-29 k=-8

Answer 3

-4(2-8m)=-36+4m -8+32m=-36+4m 32m-4m=-36+8 28m/28=-28/28 m=-1

Answer 4

7x+32=2(6x+6) 7x+32=12x+12 7x-12x=12-32 -5x/-5=-20/-5 x=4

Answer 5

this is the distributive property: 39+8a=3(6a+2)+a 39 + 8a = 18a + 6 + a combine like terms 39 + 8a = 19a + 6 39 - 6 = 19a - 8a 33 = 11a 3 = a 29+4k=3(k+7) 29 + 4k = 3k + 21 29 - 21 = 3k - 4k 7 = -k -7 = k -4(2-8m)=-36+4m -8 + 32m = -36 + 4m 32m - 4m = -36 + 8 28m = 28 m = 1 7x+32=2(6x+6) 7x + 32 = 12x + 12 32 - 12 = 12x - 7x 20 = 5x 4 = x