Question

4x-10y=-3 , 12x=5y=12
What is x? and can u explain plz

Answer 1

'x' is a variable or placeholder for an, as yet, unknown quantity. What else would it be?

Answer 2

idk.

Answer 3

Maybe you mean what value for x satisfies the two equations?

Answer 4

yes

Answer 5

4x + 10y = -3
12x...
what is the 2nd equation ? Please write it again

Answer 6

4x-10y=-3
12x+5y=12

Your task it to find two values, represented by x and y, that satisfy both equations simultaneously. There are at least a half dozen ways to do this. Which way are you studying?

Substitution?
Elimination?