penaloza280 penaloza280

14-12-2020
Mathematics

contestada

Solve for linear equations by substitution

3x - 2y = 9
y=2x-7

Respuesta :

gabbigutierrez73 gabbigutierrez73

14-12-2020

answer: x=5 , y=3

steps:
3x-2(2x-7)=9
simplify
(-x+14=9)
isolate x for -x+14=9
x=5
y=2(5)-7
y=3

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