Question

Solve the system of equations
5x+3y=58
5x-3y=22

Answer 1

add the simultaneous equations..that will give you

10x = 80

therefore x = 8

just sub in 8 into x in any of the e

Answer 2

*just sun in 8 into x in any of the equations to find y

Answer 3

*just sub*

Answer 4

Substitution method:
5x + 3y = 58
Divide both sides by 5,
x + 3/5 y = 58/5
Isolate x,
x = 58/5 - 3/5 y

shove in x into the x of the second equation,
5x - 3y = 22
5(58/5 - 3/5 y) - 3y = 22
58 - 3y - 3y = 22
58 - 6y = 22
6y = 58 - 22
6y = 36
y = 6