x + 7y = 7
⇒ 7y = -x + 7
⇒ y = -x/7 + 1
⇒ y intercept is 1.
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(7,12)
This cannot have an answer. "7y12" is not correct. If you put a plus before the twelve, this is how you solve it. y=m(slope)x(independant variable)+b(y intercept) 3x-7y+12 +7y 7y=3x-12 /7 /7 /7 y=3/7+1.714285 repeating 1.714285 repeating is the y intercept of there is a minus sign, just switch the positive on the y intercept.
11
y intercept 7 x intercept 7/3
The answer is 79. Since you know the values of x and y, you can simply substitute them into the equation to find the answer. x = 6 y = 7 5x + 7y = 5(6) + 7(7) = 30 +49 = 79