Well maybe because the only thing that is different is the - and +
$42.
13/2 = 6.5, 25/4 = 6.25, 42/7 = 6.
2(4x-1) + 3(3-2x)=0
distribute
8x-2+9-6x=0
add like terms
2x+7=0
subtract 7 from both sides
2x= -7
divide both sides by 2
x=-7/2
Answer:

Step-by-step explanation:

Answer:
x=-6 y=-26
Step-by-step explanation:
in the first is -4 every time, in the second is -20 every time