2. Equations & Inequalities
2.03 Solving multi-step equations
Interactive practice questions
Consider the equation $9\left(n+5\right)=4n+50$9(n+5)=4n+50 for $n=1$n=1.
a
Find the value of the left-hand side of the equation when $n=1$n=1.
b
Find the value of the right-hand side of the equation when $n=1$n=1.
c
Consider your answers from parts (a) and (b).
Is $n=1$n=1 a solution of $9\left(n+5\right)=4n+50$9(n+5)=4n+50?
No
A
Yes
B
Easy
2min
Consider the equation $0.28n-0.4=2.3n-3.03$0.28n−0.4=2.3n−3.03 for $n=0.8$n=0.8.
Easy
3min
Is $p=0$p=0 a solution to the equation $3p-9=7p-1$3p−9=7p−1?
Easy
< 1min
Is $x=-2$x=−2 a solution of $3x-\left(4x-8\right)=-6$3x−(4x−8)=−6?
Easy
1min
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