Asked by babs
would someone write out the whole process of the following question, including solving for y so that i can see what i am doing wrong. Thank you
Solve by the substitution method. write as an ordered pair.
8x-3y=-94
2x+22=y
Solve by the substitution method. write as an ordered pair.
8x-3y=-94
2x+22=y
Answers
Answered by
Mithra
8x - 3y = 94 ---- Equation 1
2x + 22 = y ---- Equation 2
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Sub y = 2x + 22 in equation 1
8x - 3(2x + 22) = 94
8x - 6x - 66 = 94
2x = 94 + 66
2x = 160
x = 160/2
x = 80
Now sub x = 8 in eq 1 or eq 2 and find for y
2x + 22 = y ---- Equation 2
--------------
Sub y = 2x + 22 in equation 1
8x - 3(2x + 22) = 94
8x - 6x - 66 = 94
2x = 94 + 66
2x = 160
x = 160/2
x = 80
Now sub x = 8 in eq 1 or eq 2 and find for y
Answered by
Mithra
Sorry, I made a mistake.
Substitute x = 80 in equation 1 or equation 2 and fine for y.
Substitute x = 80 in equation 1 or equation 2 and fine for y.
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