<span>x^2 - 12x - 45
= (x - 15) (x + 3) .........</span><span>factored form</span>
Let's solve your system by substitution.
−3x+y=−2;y=4x
Rewrite equations:
y=4x;−3x+y=−2
Step: Solvey=4xfor y:
y=4x
Step: Substitute4xforyin−3x+y=−2:
−3x+y=−2
−3x+4x=−2
x=−2(Simplify both sides of the equation)
Step: Substitute−2forxiny=4x:
y=4x
y=(4)(−2)
y=−8(Simplify both sides of the equation)
Answer:
x=−2 and y=−8
Step-by-step explanation:
11 - ( - 3 5/8) will equivalent to
11 + 3⅝ = 14⅝
