We have the two basic equations.
y = 2x - 10
y = 4x - 8
Since y = y, then the new equation is:
2x - 10 = 4x - 8
2x - 4x = 10 - 8
-2x = 2
x = -2/2
x = -1
So, now we know that x = -1, but we still need to find y. You can choose one of the equations and just substitute. It would be correct in both cases.
1) y = 2x - 10
y = 2(-1) - 10
y = -2 - 10
y = -12
2) y = 4x - 8
y = 4(-1) - 8
y = -4 - 8
The final answers for (x,y) are (-1, -12) respectively.
x = -1, y = -12;
~Maths
2x-10=4x-8
2x-4x=-8+10
-2x=2
x=-1
do your own homework.
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Verified answer
We have the two basic equations.
y = 2x - 10
y = 4x - 8
Since y = y, then the new equation is:
2x - 10 = 4x - 8
2x - 4x = 10 - 8
-2x = 2
x = -2/2
x = -1
So, now we know that x = -1, but we still need to find y. You can choose one of the equations and just substitute. It would be correct in both cases.
1) y = 2x - 10
y = 2(-1) - 10
y = -2 - 10
y = -12
2) y = 4x - 8
y = 4(-1) - 8
y = -4 - 8
y = -12
The final answers for (x,y) are (-1, -12) respectively.
x = -1, y = -12;
~Maths
2x-10=4x-8
2x-4x=-8+10
-2x=2
x=-1
do your own homework.