<span>X+(X+1)=31
</span>x is the first number and the second number should be x+1, since they are consecutive
Collect like terms (x + 7x) + (-1 + 4 - 3)
Simplify
Answer: 8x
He sold 12 coins, 16+28+32+4=80. 15% of 80 is 12
it would take him 32 minutes. You could use divisoin and multiplecation to figure it out
Step-by-step explanation:
ED = EB
2x +3 = 5x -15
3+15=5x -2x
18 = 3x
18 ÷ 3 = x
x = 6