5x -6y +30=0 (I)
5x +4y -20=0 (II)
SUBSITUTION METHOD!! HELP
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Step-by-step explanation:
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How to solve
step 1:From the given two Equations convert any two of the Equation into x or y form.
Step 2:Now,put x or y from step 1 into another equation to find another Variable's value.
Step 3:From step 2 again put this value into step 1.
➙5x-6y+30=0-----(1)
From equation 1
x=( -30 +6y)÷5----(2)
➙5x+4y-20=0-----(3)
From equation 2
put Equation 2 into Equation 3
➙5(-30+6y)÷5+4y= 20
➙-150+30y/5+4y= 20
➙-150+30y+20y/5=20
➙-150+50y/5=20
➙-150+50y=100
➙50y=100+150
➙50y= 250
➙y= 250÷50=25/5=5
y=5
Put y's value into equation 2
➙x=(-30+6y)÷5
➙x= -30+6(5)÷5
➙x= -30+30÷5
➙x=0÷5
➙x=0
x=0
Check:
➙5x-6y=-30
Taking LHS
➙5(0)-6(5)
➙0-30= -30
Since, LHS =RHS(Verified)
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