Answer:
3x - 2y = 7
Where y = x + 2
3x - 2(x + 2) = 7
3x - 2x - 4 = 7
x = 11
Step-by-step explanation:
If you are solving for X and y = x+2 then you write the equation out like this.
3x - 2(x +2) = 7 …. You substitute the x + 2 for y and then solve for x.
2x - 2 times x + 2 times - 2 = 7. That becomes 3x - 2x - 4 = 7. You then subtract 2x from 3x to give you X. Then you add 4 on one side to zero it out and add 4 to the other side. 7 + 4 = 11. This gives you the answer X = 11.
