Question

-19 + 5a = -40 + 8a
2 + 10x = 9x - 16 - 7
8 - 6m = 5 - 18m + 3
21 + 2n = 4n - 63 + 5n
13n + 9 = 14n + 104 - 96n

Explanation:

Solve the first equation

Using the Variables on Both Sides and Algebraic Isolation knowledge points

$$
LATEXBLOCK0
$$

Solve the second equation

Using the Combining Like Terms and Algebraic Isolation knowledge points

$$
LATEXBLOCK1
$$

Solve the third equation

Using the Combining Like Terms and Variables on Both Sides knowledge points

$$
LATEXBLOCK2
$$

Solve the fourth equation

Using the Combining Like Terms and Algebraic Isolation knowledge points

$$
LATEXBLOCK3
$$

Solve the fifth equation

Using the Combining Like Terms and Algebraic Isolation knowledge points

$$
LATEXBLOCK4
$$

Answer:

No.	Problem	Answer
2	\(2 + 10x = 9x - 16 - 7\)	\(x = -25\)
3	\(8 - 6m = 5 - 18m + 3\)	\(m = 0\)
4	\(21 + 2n = 4n - 63 + 5n\)	\(n = 12\)
5	\(13n + 9 = 14n + 104 - 96n\)	\(n = 1\)