Answer: I got -14x-13
But it sounds wrong but I have a picture
Step-by-step explanation:
Substitute= -5–2 x 2
solve= 10x2
=20
If you have an equation like 4 + w = 12, you'll work backward to find w by subtracting 4 from 12.
Or if you have an equation like 4r = 24, you'll work backward by dividing 24 by 4 to find r.
In summary. The graph of each equation is a straight line, m is the gradient of the line and c is the y-intercept. Conversely, if a straight line has gradient m and y-intercept c it has equation y = mx + c.
Answer:
7, -7
Step-by-step explanation:
x^2-6.5= 42.5 add 6.5 to both sides
x^2= 49
The square root of 49 is 7 and -7.
