Step-by-step explanation:
4x+9y=28
-4x-y=-28
8y=0
divide both side by 8
y=0
solve for X in equation 1
4(X)-9(0)=28
4x-0=28
4x =28
divide both side by 4
4x/4=28/4
X= 7
y=0,x=7
Step-by-step explanation:
perpendicular slope is negative reciprocal. -1/-1 = 1
y - 4 = x +3
y = x + 7
Answer:
Division
Step-by-step explanation:
To isolate d and solve the equation, divide 75 by 5.
PEMDAS
2.5x + 0.1x = 2.6x
2.6x - 0.01x = 2.59x
