Slope is 2/5 and the y into is -1/3
I just went with the slope. So I am not sure about the y-int.
Slope= y2 -y1 over x2-x1
(-2/15–1/30) =-.1
—————————- (over)
(-1/2- -3/4) =. -.75
- 0.1 / - 0.25 = .4 = 2/5

now
standard form for a linear equation means
• all coefficients must be integers, no fractions
• only the constant on the right-hand-side
• all variables on the left-hand-side, sorted
• "x" must not have a negative coefficient
therefore,

Answer:
x = 2
Step-by-step explanation:
First isolate the variable:
10x - 4 = 16
+4 +4
10x = 20
Then get x by itself:
10x = 20
x = 20/10
x = 10