Question

2. Solve the following simultaneous equations.
41) 30 + 5b = 26; a + 5b = 22 (2) x + 7 = 10; 3x - 2y =
(3) 2x - 3y = 9; 2x + y = 13
(4) 5m - 3n = 19; m - on
(5) SX + 2y = -3; x + 5y = 4 (6)
(7) 99x + 101y = 499; 101X + 99 = 501
(8) 49x - 5y = 172; 57x - 49y = 252
3
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3
Let's recall.
Graph of a linear equation in two variables
In the standard we learnt that the graph of a linear equation in​

Answer 1

Answer:

I don't can know I cannot help you

Answer 2

Answer:

(a, b)=(2, 4)

Step-by-step explanation:

Solving a+5b=22 for aa gives a=22−5b.

Now, substitute

a=22−5b into the first equation of 3a+5b=26 and solve for b:

3a+5b=26 3(22-5b)+5b=26 66-15b+5b=26 66-10b=26 -10b=-40 b=4

To find aa, substitute

b=4 into a=22−5b.

This gives a=22−5(4)=2.

The solution of the system is then (a,b)=(2,4).

To find aa, substitute b=4b=4 into a=22−5b.

This gives a=22−5(4)=2.

The solution of the system is then (a,b)=(2,4).