felicianorman97
16.10.2020 •
Mathematics
1. Solve the system of equations by substitution:
y = x - 2
4x – 3y = 11
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Ответ:
x = 5
y = 3
Step-by-step explanation:
y = x - 2
4x - 3y = 11
substitute y in the second equation with x - 2
4x - 3(x - 2) = 11
open the parenthesis
4x - 3x + 6 = 11
x + 6 = 11
subtract 6 from both sides of the equation
x + 6 - 6 = 11 - 6
x = 5
now substitute x for 5 in the original equation.
y = x - 2
y = 5 - 2
y = 3
Ответ: