Answer:
I'm not sure bout what to do so I did this instead.
Step-by-step explanation:
3x + 4x + 19 = 180
7x + 19 = 180
7x + 19 - 19 = 180 - 19
7x = 161
7x ÷ 7 = 161 ÷ 7
x = 23
_________________________
3x + 4x + 19 = 180
3(23) + 4(23) + 19 = 180
69 + 92 + 19 = 180
180 = 180
________________________
3x = ?
3(23) = ?
69 = ?
__________________________
4x + 19 = ?
4(23) + 19 = ?
92 + 19 = ?
111 = ?
