# 1
Hint: Since y = x - 5 and y = 4x-8, you can take the first equation y = x - 5 and replace 'y' with '4x-8' to get
y = x - 5
4x-8 = x - 5
From there, solve for x. Once you have the solution for x, use it to find y (by plugging the solution for x into either y = x - 5 or y = 4x-8)
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# 2
Hint:
If you add the two equations, you'll get
4x-2y=-8
+ -4x+5y=14
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3y = 6
From there, solve for y. Then use the solution of y to find x.