1400136961 1400136961

11-01-2021
Mathematics

contestada

PLS HELP! 7x +10y= -23

7x + 6y = - 39

Respuesta :

11-01-2021

4y = -23 + 39
4y = 16
y = 4

Sub y = 4 into equation 2
7x + 6(4) = -39
7x + 24 = -39
7x = -39-24
7x = -63
x = -9

x = -9
y = 4

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