Solve the system solve the system of equations of equations {y= 2x+7 y = 25−x a (19, 6) b (6, 19) c (-6, -19) d (19, -6) e none of these

B

since both equations express y in terms of x we can equate the right sides

2x + 7 = 25 - x ( add x to both sides )

3x + 7 = 25 ( subtract 7 from both sides )

3x = 18 ( divide both sides by 3 )

x = 6

substitute x = 6 into either of the 2 equations for y

y = 2x + 7 = ( 2 × 6 ) + 7 = 12 + 7 = 19

solution is (6, 19 )

step-by-step explanation:

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