x + 500 = 900 - 400
x + 500 = 500
x = 500 - 500
x = 0
x+500=900-400
x+500=500
x=500-500
x=0
x + 500 = 900 - 400
x + 500 = 500
x = 500 - 500
x = 0
k mình nha mình k lại cho
x + 500 = 900 - 400
x + 500 = 500
x = 500 - 500
x = 0
\(x+500=900-400\)
\(x+500=500\)
\(x=500-500\)
\(x=0\)
x + 500 = 900 - 400
x + 500 = 500
x = 500 - 500
x = 0
x + 500 = 900 - 400
x + 500 = 500
x = 500 - 500
x = 0
K mk nha
Mk k lại
x + 500 = 900 - 400
x + 500 = 500
x = 500 - 500
x = 0
x + 500 = 900 - 400
x + 500 = 500
x = 500 - 500
x = 0
x+ 500 = 900 - 400
=> x+ 500 = 500
=> x= 0
đáp số x= 0