If: 2x+5y = -10
Then by subtracting 2x from both sides: 5y = -2x-10
And dividing all terms by 5: y = -2/5x-2 which is now in slope intercept form
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2x+a=p 2x=p-a x=.5p-.5a
2x+8=10... Subtract 8 on both sides, then devide by 2... 2x=2... x=1
you need 2 equations to solve for 2 variables
many solutions
y=4x-8y=2x+10Substitute (4x-8) for y in the second equation and solve for x:4x-8=2x+102x=18x=9Now solve for y:y=4(9)-8=28(9,28)