solving equations with R

How can I solve equations for a variable

How can I solve this equation for r
Is there a specific function in R for this?

Problems benefit from a preliminary assessment before landing on a function


find_result <- function(r, w, x, y, z) {
  lhe <- w+x/(1+r)
  pt1 <- y/(1+r) 
  pt2 <- z/(1+r)^2
  rhe <- pt1 + pt2
  equation <- lhe + rhe

x <- data.frame(test = c(1e6,1e7,1e8,1e9,1e10))

ggplot(x,(aes(test,find_result(test,100,315,3.5,442)))) +
  geom_line() +

Created on 2021-01-01 by the reprex package (v0.3.0.9001)

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