Answer:
The value of x would be roughly -6.14
Step-by-step explanation:
To find x, all we need to do is put each of these values in for the variables that they represent. y obviously goes in for y. y-intercept is the b value, and slope is the m value.
y = mx + b
-58 = 7x - 15
-43 = 7x
-6.14 = x