SOLUTION: Solving linear equations by addition 2x+2=-3y+9 3x-10=-4y Why the heck is the 9 there on the first equation, I've tried subtracting it by the 2 in the first equation but

Question 1000504: Solving linear equations by addition
2x+2=-3y+9
3x-10=-4y
Why the heck is the 9 there on the first equation, I've tried subtracting it by the 2 in the first equation but in the end my answer is incorrect. If that 9 was gone I would be able to breeze through this problem.
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

Add 3y - 2 to both sides of equation 1. Then multiply equation 1 by 3.

Add 4y + 10 to both sides of equation 2. Then multiply equation 2 by -2.

John

My calculator said it, I believe it, that settles it

RELATED QUESTIONS
Hi, I've tried solving this equation in multiple ways but can't seem to crack it. The... (answered by MathLover1,josgarithmetic,greenestamps)

6. Find the choice below which gives a first step in solving the given system of... (answered by Edwin McCravy)

Solve the system of linear equation using inverse matrices. 2x-3y=-2... (answered by pie90010)

Im working on solving linear equations by elimination. whats 2x-y=9 and... (answered by ReadingBoosters)

On the below 4 equations, can you show me the steps either by substitution or addition... (answered by MathLover1,Alan3354)

Find the choice below which gives a first step in solving the given system of equations... (answered by Edwin McCravy)

I was asked to solve the systems of linear equations by using the subtraction method...... (answered by jsmallt9)

Solve the following system equations using the addition method: 3x-4y=8 and 2x+3y=9 y=? (answered by flame8855)

Question 1 : Show all work to solve this system by the substitution method : 4x +... (answered by ikleyn,stanbon)