EricaforTrev EricaforTrev
  • 23-02-2015
  • Mathematics
contestada

Solve equation (4r-2)-(3r+1)=8

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heyDB
heyDB heyDB
  • 23-02-2015
Simplify each term.
4r−2−3r−1=8

Add 4r and −3r to get r.
r−2−1=8

Add −2 and −1 to get −3.
r−3=8

Since −3 does not contain the variable to solve for, move it to the right-hand side of the equation by adding 3 to both sides.
r=3+8

Add 3 and 8 to get 11.
r=11

r is equal to 11
Answer Link
mathlovingguy
mathlovingguy mathlovingguy
  • 23-02-2015
(4r-2)-(3r+1)=8
4r-2-3r-1=8
r-3=8
r = 8+3
r = 11
Answer Link

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