Can someone explain the steps to get the answer to this:
3q= 8-7p
8p-18=q

Question

Can someone explain the steps to get the answer to this:
3q= 8-7p
8p-18=q

campbell_st · Answer

well this can be solved by substitution, 

take the 2nd equation and substitute it into the 1st equation 

3(8p - 18) = 8 - 7p

or

24p - 54 = 8 - 7p

now add 7p to both sides of the equation 

31p -54 = 8

I'll let you finish the solution of p. 

when you have p, substitute it into either of the initial equations to find q... 

hope it helps

jiteshmeghwal9 · Answer

$$7p+3q=8$$$$8p-q=18$$First of all make the coefficient of any of the same variables equal$$=>7p+3q=8$$$$3(8p-q)=(18)3$$$$=>7p+3q=8$$$$24p-3q=54$$now eliminate '3q'. therefore,$$31p=62$$now find 'p' & then put the value of 'p'in any of the equation toget 'q':)

jiteshmeghwal9 · Answer

my method is the elimination method & @campbell_st has used the substitution method. so i think u will nt gt confused @AmberLove01 :)

anonymous · Answer

I have been stuck on this question for a while && I have finally understood it! I found the elimination one a little bit easier, but thanks for both helping me.

jiteshmeghwal9 · Answer

yw :)