you can't "solve" a linear equation. It just describes a function.
Now, if you want to see where the two functions are the same, you need
x+4 = -2x+1
3x = 3
x = 1
so, y=5
If you want to find the root, where y=0, then just set y=0 and solve for x:
0 = x+4
x = -4
solve each linear equation..
y=x+4
y=-2x+1
I just need help on one of them.
3 answers
As you said, that you can't solve a linear equation, that's what it says in the textbook.. also I've checked the back of the book and it says the coordinates are (-1,3). Sorry for the bother.
I am sure Steve meant to type
3x = -3
thus x = -1 and therefore y = 3
just like your textbook said
3x = -3
thus x = -1 and therefore y = 3
just like your textbook said