0.5Q+30 = −0.2Q+100
0.5q+0.2q=100-30
70=0.7q
q=70/0.7
q=100
0.5*100+30
=80
Is there a package that solves equations with variables on both sides?
One option is to subtract the right hand side from the left and then use uniroot to solve it.
uniroot
#0.5Q+30 = −0.2Q+100 leftside <- function(Q){ x<- 0.5*Q+30 return(x) } rightside <- function(Q){ x<- -0.2*Q+100 return(x) } solution<-uniroot(function(Q) {leftside(Q)- rightside(Q) }, lower = 0, upper = 999) print(solution$root) leftside(solution$root)
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One option is to subtract the right hand side from the left and then use
uniroot
to solve it.