Problem (1)1) 2x - y = 64x + 3y + 22 = what?cannot solve because there is ONLY ONE equationProblem (2)x + 5y = 83x + 2y = 11...........
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from left to right hope this helps, I found it useful
Basically, you solve simultaneous linear equations by putting them in the form ax + by = n. Then you use either substitution or elimination to get a value for either x or y. Put that value back into one equation and get the value for the other variable. Substitution is easier if there is a simple expression for y in terms of x or vice versa.
Problem (1)
1) 2x - y = 6
4x + 3y + 22 = what? cannot solve because there is ONLY ONE equation
Problem (2)
x + 5y = 8
3x + 2y = 11.........Substitution is good here because x = 8 - 5y and therefore
24 - 15y + 2y = 11
-13y = -13 and y = 1, x = 3
Problem (3)........Use substitution as shown above
Problem (4)...Use elimination here
3x + 2y = 7 ....multiply this one by 2 and subtract the second equation from it
5x + 4y = 12.....subtract this from twice the first eqn.
6x + 4y = 14
5x + 4y = 12
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x = 2 and therefore y = 1/2
You should now be able to do all the others. You wrote (6) incorrectly which shows a lack of respect for people you are asking to help you. If it's not worth your time to write the problem correctly, why should it be worth anyone else's time to solve it?
