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marin [14]
3 years ago
13

Please help me solve question 2

Mathematics
2 answers:
sergiy2304 [10]3 years ago
8 0

Answer:

solution: ( 3 , 6 )

\sf y =6

\sf x =3

Step-by-step explanation:

\sf y = \frac{2}{3} x+4

\sf 2x+3y = 24

make y the subject in equation 2:

\sf 2x+3y = 24

\sf 3y = 24-2x

\sf y = \frac{24-2x}{3}

insert this in equation 1:

\sf \frac{24-2x}{3} =\frac{2}{3} x+4

\sf \sf \frac{24-2x}{3} =\frac{2x+12}{3}

\sf (24-2x) = (2x+12)

\sf -2x-2x=12-24

\sf -4x=-12

\sf x =3

solve for y:

\sf y = \frac{24-2x}{3}

\sf y = \frac{24-2(3)}{3}

\sf y =6

expeople1 [14]3 years ago
8 0

Answer:

(3, 6)

Step-by-step explanation:

\textsf{Equation 1}: \ y=\dfrac23x+4

\textsf{Equation 2}: \  2x + 3y =24

Substitute equation 1 into equation 2:

\implies 2x + 3\left(\dfrac23x + 4 \right) =24

Expand brackets:

\implies 2x +2x+12=24

Collect like terms:

\implies 4x+12=24

Subtract 12 from both sides:

\implies 4x=12

Divide both sides by 4:

\implies x=3

Now substitute found value of x into equation 1:

\implies y=\dfrac23(3)+4

\implies y=2+4

\implies y=6

Therefore, solution is (3, 6)

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