Question

Solve the system of equations by substitution.

y equals 3 x minus 10
3 x plus 2 y equals 16

Answer 1

x=4, y=2. (4, 2).

Explanation:

y=3x-10

3x+2y=16

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3x+2(3x-10)=16

3x+6x-20=16

9x-20=16

9x=16+20

9x=36

x=36/9

x=4

y=3(4)-10=12-10=2