Which value is a solution of the equation 5 – 4x = –3

which value is a solution of the equation 5 – 4x = –3

0
2
-3
1/4

which ordered pair is a solution of the equation y = 4x
(1, 3)
(–1, –4)
(–4, –1)
(1, –4)

Q1. The answer is 2

5 – 4x = –3

Subtract 5 from both sides:
5 - 4x - 5 = -3 - 5
- 4x = -8

Divide -4 from both sides
-4x/-4 = -8/-4
x = 2

Q2. The answer is (–1, –4)

y = 4x
Substitute all choices:
(1, 3)
3 = 4 * 1
3 = 4
INCORRECT

(–1, –4)
-4 = 4 * (-1)
-4 = -4 
CORRECT

(–4, –1)
-1 = 4 * (-4)
-1 = -16
INCORRECT

(1, -4)
-4 = 4 * 1
-4 = 4
INCORRECT

He worked 42.25 hours.
For the first 40 hours, he got $9.20 each hour.
40 hours times $9.20 = $368.

So how much did he get paid for the other 2.25 hours?
He is paid 1.5 times $9.20 each hour after that.
That's $13.80 an hour.
Times two hours is $27.60.

27.6 + 368 = Only $395.60!
Even if he got paid for that quarter of an hour, a quarter of $13.80 is only $3.45, which puts him at $399.05--still not more than $400.