joydivision01
25.01.2021 •
Mathematics
3x + y = -3
y = x + 5
Substitution pls show solving
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Ответ:
Substitute y = x + 5 in the ‘y’ spot in the 3x + 7 = -3 equation
3x + y = -3
3x + x + 5 = -3
combine liked terms
4x + 5 = -3
-5 on both sides
4x = -8
/4 on both sides
x = -2
x = -2
Ответ:
yes si
Step-by-step explanation:
9+10= 21