Option A, because you split the (2x + 3) into 2x and 3.
Answer:
n = -5
I think the answer is -5, because:
The last number in the operation has a negative sign.
This can be a reason that it is-5.
Hope it helps!
Answer:
0.5 or -0.5
Step-by-step explanation:
4x - 3 = 3x - 1
-1 + 3 = 2
4x = 3x - 2
4 - 3 = 1
1x = -2 or positive 2
1x ÷ -2
-0.5 or 0.5
-----‐------------------------
4x-3 = 1
3x -1 = 0.5
f= 1
g= 0.5
1 x 0.5 = x
x= 0.5
Let x be the number of coins at $10
The number of coins at $20 are 53-x
Hence the equation:
10.x + 20(53-x) = 750
Solve for x & you will find x =31 (at $10/each) and the others, 22 at $20 each)
