= x(8 -8) +(10 +13)
= 0 +23
= 23
Selection D is appropriate.
It took 9 hours of labor. 500 - 140 = 360...... 360 / 40 = 9.
Answer: 9.
Answer:
( -4, -3 )
Step-by-step explanation:
Let's solve by elimination. Reason being there are no variables without coefficients.
−5y+3x=3 Multiply equation by 3. Each term.
−8y+9x=−12
-15y + 9x = 9 Subtract the to equations
-8y + 9x = -12
___________
-7y = 21
y = -3
Substitute y into original equation
-5(-3) + 3x = 3
15 + 3x = 3 Subtract 15 both sides
3x = -12 Divide by 3, both sides
x = -4
The answer is standard form. When the equation is set up as Ax + By = C where A and B are coefficients.