Answer:
n=-2
Step-by-step explanation:
1−(2n+9)=4(1−2)
1+−1(2n+9)=4(1−2)
1+−1(2n)+(−1)(9)=4(1−2)
1+−2n+−9=4(1−2)
1+−2n+−9=−4
(−2n)+(1+−9)=−4
−2n+−8=−4
−2n−8=−4
−2n−8+8=−4+8
−2n=4
Divide both sides by -2
-2n/2=4/-2
n=-2
Answer:
n = -2
Step-by-step explanation:
remove () from equation so its 1-2n-9=4× -1
calculate the differences and multiply
-8-2n=-4
move the constant to the right of the equation -2n=-4+8
calculate the sum -2n=4 divide both sides of equation by -2
and boom n=-2
