Answer:
47 I believe
Step-by-step explanation:
Answer:
x = 7
Step-by-step explanation:
7x + 1 = 130 = 180
7x = 180 - 130 - 1
7x = 49
x = 7
Answer:
One train weighs 30 tons and another train weighs 99 tons.
Step-by-step explanation:
30+99 adds up to 129
Answer:
6
Step-by-step explanation:
1+2+3=6
Answer:
Step-by-step explanation:
You need to remember the Distributive property:
And the multiplication of signs:
Therefore, applying the explained before, to simplify the expression you need to multiply each term that are inside of the parentheses by -2, then you get: