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krok68 [10]
3 years ago
11

Solve the system: 4x – 3y = -21 X=-y-14

Mathematics
2 answers:
Reika [66]3 years ago
7 0

Answer:X=−4x/3−21

                 y=4x/3+7

Step-by-step explanation:

Liula [17]3 years ago
4 0

Answer:

The solution for the system of equations is

x=2,y=−2

Explanation:

4x−3y=14.....equation (1)

y=−3x+4.....equation (2)

Solving by substitution

Substituting equation 2 in equation 1

4x−3⋅(−3x+4)=14

4x+9x−12=14

13x=14+12

13x=26

x=2

Finding y by substituting x in equation 1

4x−3y=14

4⋅2−3y=14

8−3y=14

8−14=3y

3y=−6

y=−2

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