Answer:
[tex]-0.75x-7-7.5x-5.4=-8.25x-12.4[/tex]
Step-by-step explanation:
Given the expression
[tex]\left(-0.75x-7\right)-\left(7.5x+5.4\right)[/tex]
Remove parentheses: (-a) = -a
[tex]=-0.75x-7-\left(7.5x+5.4\right)[/tex]
As we know that: - (7.5x + 5.4) = -7.5 - 5.4
[tex]=-0.75x-7-7.5x-5.4[/tex]
Group like terms
[tex]=-0.75x-7.5x-7-5.4[/tex]
Add similar elements: -0.75x - 7.5x = -8.25x
[tex]=-8.25x-7-5.4[/tex]
Subtract the numbers: -7 - 5.4 = -12.4
[tex]=-8.25x-12.4[/tex]
Therefore, we conclude that:
[tex]-0.75x-7-7.5x-5.4=-8.25x-12.4[/tex]
