Each term is increasing by *3
Next three terms:
6, 18, 54
-2(7n-6)+n=-3-8n
multiply the bracket by -2
-2(7n)-2(-6)+n= -3-8n
-14n+12+n= -3-8n
-14n+n+12= -3-8n
-13n+12= -3-8n
Move -8n to the other side. Sign changes from -8n to 8n.
-13n+8n+12= -3-8n+8n
-5n+12= -3
move +12 to the other side
sign changes from +12 to -12
-5n+12-12= -3-12
-5n= -15
Divide by -5
-5n/-5= -15/-5
n= 3
Answer : n= 3
Answer:
Yes
Step-by-step explanation:
1 cup= 8/8 cup
1/4 = 2/8
2/8 + 3/8 = 5/8
5/8 is less than 8/8, so they have enough water
Answer:
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Step-by-step explanation:
Answer:
Equation:
2(a+9) = a/2
Solve:
The umber is:
-12
Step-by-step explanation:
Equation:
2(a+9) = a/2
Solve:
2*a + 2*9 = a/2
2a + 18 = a/2
2a - a/2 = -18
4a/2 - a/2 = -18
3a/2 = -18
a = -18*2/3
a = -12
Check:
2(-12+9) = -12/2
2(-3) = -12/2 = -6
