1. x + 49 = -3x + 1
4x = -48
x = -12
2. 7x + 23 + 4x + 25 = 180
11x + 48 = 180
11x = 132
x = 12
Answer:
189 students have an email account.
Step-by-step explanation:
315 divided by 5 is 63, multiply that by three.
Answer:
6.4285714286
Step-by-step explanation:
(a+b)^3 = a^3+b^3+3ab(a+b)
(a+b)^3 = (-1)^3
For the first one, there are 50 south american butterflies