Step-by-step explanation:
if the 2 matrices are inverse, then their product must be the identity matrix
1 0
0 1
so,
m×3 + 2×-7 = 1
7×3 + 3×-7 = 0
m×-2 + 2×m = 0
7×-2 + 3×m = 1
that means we have to solve only
3m - 14 = 1
3m = 15
m = 5
23=5-2y
Get y alone,
23-5= 18
18= -2y
Divide to find y
18/-2=-9
Y= -9
Or since you asked for x, X=no solutions.
Hope it helps ❤️
3m - 2 - 2m > -5
First, simplify 3m - 2 - 2m to m - 2. / Your problem should look like: m - 2 > -5
Second, add 2 to both sides. / Your problem should look like: m > -5 + 2
Third, simplify -5 + 2 to -3. / Your problem should look like: m > -3
Answer: m > -3
Answer:
The answer is C
Step-by-step explanation: