Answer:
-15
Step-by-step explanation:
When adding together two negatives it works just as it would with positive numbers, just with the negative sign to properly negate it.
Answer:
1.5 hours
Step-by-step explanation:
1/2 + 1/2 + 1/2 =1.5
5(4x - 10) + 10x = 4(2x - 3) + 2(x - 4)
20x - 50 + 10x = 8x - 12 + 2x - 8
30x - 50 = 10x - 20
30x - 10x = -20 + 50
20x = 30
x = 3/2 <==
12/7 + 8/7
12+8 = 20
20/7 = 2 and 6/7ths
