<span>2(x-y)=14 </span>
<span>3(x+y)=174</span>
<span>2(x-y)=14</span>
y=x-7
3(x+y)=174
3(x+(x-7))=174
6x-21-174=0
6x-195=0
x=195/6
x=32.5
2(x-y)=14
2(32.5-y)=14
65-2y-14=0
51-2y=0
y=51/2
y=25.5
Объяснение:
x^2+64=0
x^2+8^2=0
x=8
семь разделить на сто сорок