marlanna12 marlanna12

14-02-2016
Mathematics

contestada

how do you solve this equation 4x+y=8,-2+9y=3

Respuesta :

Panoyin Panoyin

14-02-2016

4x + y = 8
-2 + 8y = 3

-2 + 8y = 3
+ 2 + 2
8y = 5
8 8
y = ⁵/₈

4x + y = 8
4x + ⁵/₈ = 8
- ⁵/₈ - ⁵/₈
4x = 7³/₈
4 4
x = 1²⁷/₃₂
(x, y) = (1²⁷/₃₂, ⁵/₈)

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