Answer:
y - 4 = x + 5 --> y = x + 9
2x + 5 = x + 12
x + 5 = 12
x = 7
y = 7 + 9 = 16
2x+5=x+12
y-4=x+5
Explanation:
first solve for x, then put the variable of x into the secon equation and solve for y
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