Answer:
x=-1
Step-by-step explanation:
-2(x-1)=4
(-2)(x)+(-2)(-1)=4
-2x+2=4
-2x+2-2=4-2
-2x=2
= 
x=-1
Answer:
x= -1
Step-by-step explanation:
7x + 2.5= -4.5
-2.5 -2.5
7x= -7
÷7 ÷7
x= -1
448
because: convert 87.5% to a decimal
x = .875 × 512
x = 448
Answer:
1.30 Minutes
2.6 Minutes
3.45 Minutes
Step-by-step explanation: