3x-2
-(-5x+7)
☝️this is your equation
distribute your subtraction sign to -5x+7 and you get
+5x-7
add everything together and you end up with
8x-9
Answer:
10100=15700(1-0.075)^x
10100=15700(0.925)^x
divide both sides by 15700
0.925^x=101/157
convert decimal
(37/40)^x=101/157
take the log
x= log 37/40 (101/157)
x= 5.65824