Question

7(2х+9)+3х=114 и 3(4х+13)-25=74

Answer 1

7(2х+9)+3х=114
14х+63+3х=114
17х=114-63
17х=51
х=51:17
х=3

3(4х+13)-25=74
12х+39-25=74
12х=74-39+25
12х=60
х=60:12
х=5

Answer 2

7(2х+9)+3х=114
14х+63+3х=114
17х=114-63
17х=51
х=51/17
х=3
3(4х+13)-25=75
12х+39-25=75
12х=75-39+25
12х=61
х=5,08