8^x=8^0 The 8 in both sides gets cancelled out. x=0
100^x=100 The hundred in both sides gets cancelled out. x=1
12^x times 12^4=12^8 When the bases (numbers) are same and are multiplied together, you add the powers together. 12^x+4=12^8 The 12 in both sides get cancelled out. x+4=8 x=8-4 x=4
(7^2)^9=7^3)^x When there are powers both inside and outside the brackets, they’re multiplied with each other. 7^18=7^3x The seven in both sides gets cancelled out. 18=3x 3x=18 x=18/3 x=6
