Answer:
(-1,42)
Step-by-step explanation:
ahaha i got it wrong then it told me the actual answer
2x-7y=18 _(1)
-2x+4y=5
11y=23 , Y=23/11 sub in 1
2x-7×23/11=18
2x = 18×11 + 7×23
x = ( 198 + 161 )/2 = 359/2
The answer to your question is w =40(2)n [n is in exponent form I just couldn’t type it that way ]
This is what i got in the caculator 6400 if not im so so sory