Question

5x +3y = 35 and 2x +4y = 28 solve by substitution metod

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

The values are $x=4, y=5$.

Step-by-step explanation:

Given equations are $5x+3y=35$ ---(1)

$2x+4y=28$--(2)

The steps are:

1. Expanding the parenthesis.

2. Solve one of the equations for either $y$ or $x$.

3. Substitute it in other equation.

4. Solve the new equation obtained by using arithmetic operation.

From (2), we get

$x=14-2y$

Using it in (1), we get

$5(14-2y)+3y=35$

$70-10y+3y=35$

$70-7y=35$

$y=\frac{35}{7}$

$y=5$

Using it in (2)

$2x+4(5)=28$

$2x=28-20=8$

$x=4$

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