Question

5. Use a system of equations and a graphing calculator to solve 1.1x + 1.5 = -4.5x + 5.7

x= [ A 0.50 B 0.75 C
1.25)​

Answer 1

x=0.75

Explanation:

Answer 2

Option B) 0.75 is correct

Therefore x=0.75

Explanation:

Given system of equation is 1.1x+1.5=-4.5x+5.7

To solve the given system of equation :

1.1x+1.5=-4.5x+5.7

Subtracting with (-4.5x+5.7) on both sides we get

1.1x+1.5-(-4.5x+5.7)=-4.5x+5.7-(-4.5x+5.7) ( Subtraction property of equality )

1.1x+1.5+4.5x-5.7=-4.5x+5.7+4.5x-5.7 ( using Distributive property )

5.6x-4.2=0 ( adding the like terms )

5.6x-4.2+4.2=0+4.2 ( Addition property of equality )

5.6x+0=4.2

5.6x=4.2

`x=(4.2)/(5.6)`

`=0.75`

Therefore x=0.75

Therefore option B) 0.75 is correct