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Sagot :
2y+7y=-20
You first add common numbers/variables
So you add 2y to 7y=9y
9y=-20
You divide -20 by 9y=-2[tex] \frac{2}{9} [/tex]
y=2[tex] \frac{2}{9} [/tex]
You first add common numbers/variables
So you add 2y to 7y=9y
9y=-20
You divide -20 by 9y=-2[tex] \frac{2}{9} [/tex]
y=2[tex] \frac{2}{9} [/tex]
2y + 7y = -20 :First combine like terms (2y and 7y)
9y = -20 :Then, divide the whole equation by 9
y = -2.22
or
y = -22/10
or
y = -11/5
or
y = -2 1/5
9y = -20 :Then, divide the whole equation by 9
y = -2.22
or
y = -22/10
or
y = -11/5
or
y = -2 1/5
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