Find the value of x for which y =20 is a solution of the equation 5x+20y=500
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Answered by
2
HI there !!
x = ?
y = 20
5x + 20 y = 500
5x + 20 × 20 = 500
5x + 400 = 500
5x = 500 - 400
5x = 100
x = 100/5
x = 20
x = ?
y = 20
5x + 20 y = 500
5x + 20 × 20 = 500
5x + 400 = 500
5x = 500 - 400
5x = 100
x = 100/5
x = 20
Answered by
2
it is given,
y = 20 -----1
substitute 1 in the equation,
5x + 20 (20) = 500
5x = 500 - 400
5x = 100
x=100/5
x=20
thus the value of x is also 20.
hope it helps!!
y = 20 -----1
substitute 1 in the equation,
5x + 20 (20) = 500
5x = 500 - 400
5x = 100
x=100/5
x=20
thus the value of x is also 20.
hope it helps!!
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