Question

16) -10312 15) 10p + 9 - 11 - p = -2(2 p + 4) - 3(2p - 2) ap-2=-up-8-opto lapto ap+uptcp=-84612 p-0119-0 p=0 17) 10(x + 3) – (-9x - 4) = x - 5 + 3 18) 1212

Answer 1

10 (x + 3) -(- 9x - 4) = x - 5 + 3

Eliminate parenthesis

10x + 3•10 + 9x + 4 = x - 2

group in 2 blocks, letter x block, and number block

10x + 9x - x = -30 - 4 - 2= -36

then

18x = -36

x= -36/18 = -2

Answer is x= -2

Part B)

-12(x -12) = -9 (1 + 7x)

-12x + 12•12 = -9 - 63x

Group again, in 2 blocks

-12x + 63x = -9 - 144

51x = - 153

Then

x = -153/51= -3

So then So thAnswer is 3 = -2