8x - 2y = 48, y =4
8x - 2(4) = 48
8x - 8 = 48
8x = 48+8
8x = 56
x = 56/8 = 7
x = 7
Ok to solve this just write it out how it sounds, like so.
3x/4

-16
Hope this helps!=)
B; 25.65+13.23+6.35=45.23
To do this mentally just add the 2 decimals places together first (1.23). Then just add the whole numbers (44). Then add the 2 numbers together, 44+1.23=45.23
We need to follow PEMDAS
We have to do the addition and subtraction from left to right.
Rearrange the terms
52 - 18 - 34
52 -1(18+34)
52 -1(52)
52 - 52
0
So, at the end, your final answer is 0.