Question

1) 2(a + 3) = -12

2) 3(p+2) = 18
3) 4(2r +8) = 88
4) 2(3a + 2) = -8
5) 4(k + 3) = 4
Show your work please.

Answer 1

1)-9 2)4 3)7 4)-2 5) -2

Explanation:

1) 2(a+3)=-12 2) 3(p+2)=18 3) 4(2r+8)=88 4) 2(3a+2)=-8

2a+6=-12 3p+6=18 8r+32=88 6a+4=-8

-12-6=-18 18-6 8r=56 -8-4=-12

2a=-18 18/2 3p=12 12/3 56/8 6a=-12 -12/6

a=-9 p=4 r=7 a=-2

Answer 2

1)
2(a + 3) = -12
Divide by 2
a + 3 = -6
Subtract 3
a = -9

2)
3(p + 2) = 18
Divide by 3
p + 2 = 6
Subtract 2
p = 4

3)
4(2r + 8) = 88
Dive by 4
2r + 8 = 22
Subtract 8
2r = 14
Divide by 2
r = 7

4)
2(3a + 2) = -8
Divide by 2
3a + 2 = -4
Subtract 2
3a = -6
Divide by 3
a = -2

5)
4(k + 3) = 4
Divide by 4
k + 3 = 1
Subtract 3
k = -2