Question

solve by substitution : 4x+3y=25 and 3x+4y=24
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Answer 1

Answer:

x=4 y=3

Step-by-step explanation:

may it helps you

Answer 2

Step-by-step explanation:

$4x + 3y = 25.......equ(1)$

$3x + 4y = 24$

$3x = 24 - 4y$

$x = \frac{24 - 4y}{3} .......equation (2)$

replacing X by the equation 2 in equation 1

4[(24-4y)/3]+3y=25

(96-16y)/3+3y=25

(96-16y+9y)/3=25

96-7y=25×3

96-7y=75

96-75=7y

21=7y

y=21/7=3

substituting y value in equation 1

4x+3×3=25

4x+9=25

4x=25-9

4x=16

4x=16

x=16/4=4

so, x=4 And y=3