124k views
2 votes
Sparx question is too hard for me and i do not know the answer

Sparx question is too hard for me and i do not know the answer-example-1
User RbtLong
by
7.2k points

1 Answer

4 votes

To solve the simultaneous equations 2x + 3y = 14 and 4x + 3y = 10, you can use the method of substitution. First, solve one of the equations for either x or y, then substitute that expression into the other equation. The solution is x = -2 and y = 6.

To solve the simultaneous equations 2x + 3y = 14 and 4x + 3y = 10, you can use the method of substitution. First, solve one of the equations for either x or y, then substitute that expression into the other equation. Let's solve the second equation for y:

4x + 3y = 10

3y = 10 - 4x

y = (10 - 4x) / 3

Now, substitute this expression for y in the first equation:

2x + 3((10 - 4x) / 3) = 14

2x + (10 - 4x) = 14

10 - 2x = 14

10 - 14 = 2x

-4 = 2x

x = -2

Now plug this value of x back into either of the original equations to find the value of y:

2(-2) + 3y = 14

-4 + 3y = 14

3y = 18

y = 6

Therefore, the solution to the simultaneous equations is x = -2 and y = 6.

The above question is incomplete, the complete question is:

Solve these simultaneous equations:

2x + 3y =14

4x + 3y = 10

User Kaffee Bohne
by
8.1k points