Answer:
(-5.77, 6.46)
Step-by-step explanation:
15x + 9y = 45 ----------- i
9x + 8y = 12----------------ii
Multiply equation i by 9 the coefficient of x in equ ii
And equation ii by 15 the coefficient of x in equ I
9 x 15x + 9y = 45 ----------- i
15 x 9x + 8y = 12----------------ii
135x+81y = 405
135x+120y= 180
Subtract equation ii from I
135x-135x+81y-(+120y)= 405-180
-39y=225
y = 225/-39 = -5.77
Insert the value of y in equ i
15x + 9y = 45
15x+9(-5.77) = 45
15x-51.92=45
15x = 45+51.92
15x= 96.92
x = 96.92/15= 6.46
(x,y) = (-5.77, 6.46)
x = 6.92/15
Answer:
x=0
Step-by-step explanation:
Answer: X = 7.
Step-by-step explanation: Move all terms that don't contain x to the right side and solve.
<em>I'll go step-by-step.</em>
<em></em>
1. Add 5 to <u>both</u> sides. 6x-(5+5)=37+5
2. Simplify 6x=42
3. Divide <u>both</u> sides by 6. 
4. Then simplify/Divide. 42 / 6 = 7
That's how you get 7!
X = 7
Answer:
It is already solved!
Step-by-step explanation:
It is meant to be in y = mx + b form where x is the slope and b is is the y-intercept.
