Question 411517
4x-5y=38
7x-8y=22
.
multiply top eq by 7; bottom eq by -4 then ADD:
 28x-35y=266
-28x+32y=-88
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-3y = 178
y = 178/(-3)
y = -178/3
y = -59.33
.
find x by substituting above into:
4x-5y=38
4x-5(-59.33)=38
4x=-258.67
x = -64.67