7x+41x=1948x=19x=4
40x-4x=5436x=54x=15
(9x+7x)6=22(94+74)6=22(36+28)6=22646=22384=228
There seems to be an error in the calculation for the last equation.
7x+41x=19
48x=19
x=4
40x-4x=54
36x=54
x=15
(9x+7x)6=22
(94+74)6=22
(36+28)6=22
646=22
384=228
There seems to be an error in the calculation for the last equation.