Answer:
x = p/(r-s)
Step-by-step explanation:
Collect terms and divide by the coefficient of x.

.28 if 1 was 100,and .28 was 2.8, then we divide 100 by 100 same for 2.8
Answer:
In the first step, there is an issue when distributing the -3 to the terms inside of the parentheses. When multiplying the -3 to the -5, you would get an answer of +15, not -15.
The full correct process is:
(4m + 9) - 3(2m - 5) = 4m + 9 - 6m + 15
= 4m - 6m + 9 + 15
= -2m + 24
The answer is -1/64, i hope its helps