-3+3x=-2(x+1)
First: I will get rid of the bracket:
-3+3x=-2x-2
Now, all the x goes to the left side, all the numbers without x to the right side:
3x+2x=-2+3
we add up"
5x=1
divide by 5:
Answer:
C= 47.12 cm
Step-by-step explanation:
C= 2(3.14)* 7.5= 47.12389
round--> 47.12 cm
multiply 5 times 21 then 4 times 15 and then add them together
Y=-3
9+y=6
-9 -9
y=-3
subtract 9 from 6 that's what y equals
3:5=x:50
Therefore 5 ×x = 50
x = 10
Therefore 3 × 10 = 30
therefore 30 blue pens
proof = 30 blue + 50 red= 3+ 5
therefore 80 = 8x