4/7m = 2/7(2m + 1)
4/7m = 4/7m + 2/7
4/7m - 4/7m = 2/7
0 = 2/7 (incorrect)
no solution
Answer: (3,inf)
(-inf,3)
Step-by-step explanation:
2x + 21 = 35
hope this helps
5=4x+2x-7
5+7=6x
12=6x
12/6=6x/6
2=x
25% 6 divided by 24 will give you the percentage of copper in the bar
