Answer:
I think its better than other types of math.
Step-by-step explanation:
y= - frac4/7 x + frac9/7
y = -7 and x = -36
x - 4y = -8
5y - 1 = x
→ Substitute 5y - 1 into x - 4y = -8
5y - 1 - 4y = -8
→ Simplify
y - 1 = -8
→ Add 1 to both sides
y = -7
→ Substitute y = -7 into 5y - 1
( 5 × -7 ) - 1 = -36
p = 14/4
-4p+9=-5
-4p = -14
