Solve the simultaneous equation: 3x+y=-2, -7x+5y=34.
3x+y=-2 ...1)
-7x+5y=34 ...2)
Using the substitution method:
Rearrange equation 1):
y=-3x-2 ...1))
substitute equation 1)) into eqaution 2)
-7x +5(-3x-2)=34
-7x-15x-10=34
-22x=44
x=-2
subsitute x into 1))
y=-3(-2) -2
y=4
Therefore, x=-2, y=4
SJ
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