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OpenStudy (anonymous):
what are the steps to solve this system of linear equations ? x + y =-2 2x-3y=9
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OpenStudy (campbell_st):
multiply the 1st equation by 3, add to the 2nd equation to eliminate y. Solve for x. Substitute x back into either equation to find y
OpenStudy (anonymous):
Can you do the math to in steps ? what's the answer ? @campbell_st
OpenStudy (campbell_st):
triple the 1st equation 3x + 3y = - 6 2x - 3y = 9 add the 2 equations ------------ 5x = 3 now solve for x the substitute the value of x into either equation to find y and can you check the 1st equation is = -2.....
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