you need 2 equations to solve for 2 variables
2x+x-5 = 10 2x+x = 10+5 3x = 15 x = 5 and y = 0
-4 plus 10 equals 6.
x=10
12 + 10 + 11 equals 33
Solving the simultaneous equations works out as x = -2 and y = -2 So the lines intersect at: (-2, -2)
There are 2 unknowns
2x+x-5 = 10 2x+x = 10+5 3x = 15 x = 5 and y = 0
-4 plus 10 equals 6.
If x equals 10 and y equals 10, then 9x plus 8y equals 170.
x=10
12 + 10 + 11 equals 33
-10 plus 10 equals 0.
61
10 plus 10 equals 20 20 divide by 10 equals 2 2 plus 10 equals 12
Solving the simultaneous equations works out as x = -2 and y = -2 So the lines intersect at: (-2, -2)
10 + 10 + 10
A equals 4 because 4 plus 6 is 10 or 10 minus 6 is 4.