Answer:
Step-by-step explanation:
either way works, but I would suggest adding 4x to each side so that the "x" value stays postive. Keeping the "x" positive when possible always helps me.
it becomes:
10x=4
x=4/10
x=2/5
the first one is likely and the second one is impossible
Answer: $-84
190 total amount
Step-by-step explanation
30 times 3= 90
150+90=240
240-50=190
the answer is 210
10×10=20+1=21, 21×10=210