Question

Solve 3^4x=72
Solve 2^x+7=125.93

Answer 1

take a log

Answer 2

thanks! then do I divide by 4?

Answer 3

log(3^4x=72)
4x*log3 = log 72
4x* 0.477121255 =1.857332496
1.908485019*x=1.857332496
x=1.857332496/1.908485019
x=0.973197315

Answer 4

Thank you so much!!!

Answer 5

2^x+7=125.93
2^x=125.93-7
2^x=118.93
log(2^x=118.93)
x*log2 = log 118.93
0.301029996 *x = 2.075291419
x=2.075291419/0.301029996
x=6.893968869