Answer:
I think this is the answer. Not sure though.
Step-by-step explanation:
Take 3x, for example
3x will equal to (4x - 10)
So, in other words, the equation is .....
(4x - 10) + 3x = 10
= 7x - 10 = 10
7x = 10 + 10
= 20
x = 20/7
x = 2.85
y = 4x - 10
= (4 x 2.85) - 10
= 11.4 - 10
= 1.4.