8 10
-6
5
1
9
If A = -8
-10
and B
-9
-8
10
find -7A+ 3B
2.
-2
-2
-10
6
-2
a.
C.
-11
23
-81
-71
-73
15
39
26
-49
83
94
-79
76
-48
8
16
20
b.
d.
59
37
45
-41
-67
69
-87
-86
91
29
46
-19
36
-64
-20
-44
8
32

5

Step-by-step explanation:

you know what to do with a different person and you know

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.