3x-7= 5x-19 justify the each step

1. add a negative 5x to both sides
2. add seven to both sides
3. there is your answer.

3x-7=5x-19
-3x   -3x
-7=2x-19
19     +19
12=2x
/2   /2
6=x

I'll do the first one for you. it isn't very hard at all.on number one, you have (50 × 3), which equals 150, and (3 × 3), which equals 9. after you establish that, you add 150 and 9 together. so, (150 + 9) equals 159.this means that 53 × 3 = 159.