2(4x-6)=6x-4
2(4x)-2(6)=6x-4
8x-12=6x-4
8x-6x=-4+12
2x=8
2x/2=8/2
x=4
check...2(4*4-6)=6*4-4
2(10)=24-4
20=20 ✓
If 3 inches represents 15 miles, then that means 1 inch represents 15/3 = 5 miles. That means that 5 inches represents 5 * 5 = 25 miles.
The answer is choice (A).
The gradient of the graph is 2.
Solution:
Let the points on the graph are (-2, 0) and (0, 4).
Here
.
Gradient of the graph:




Cancel the common terms, we get
Gradient = 2
The gradient of the graph is 2.
It has no solutions or an infinite amount of solutions