Hello!
-7 + 4 = -3
I hope this helps you! Have a lovely day!
-Mal
Answer:
<h3>

</h3>

Step-by-step explanation:
1. 
Collect like terms
⇒
Divide both sides of the equation by 6
⇒
Calculate
⇒
2. 
Collect like terms
⇒
Divide both sides of the equation by -9
⇒
Calculate
⇒
Hope I helped!
Best regards!!
<h2>
The simplest form of
is equal to 55.</h2>
Step-by-step explanation:
We have,

Too find, the simplest form of
= ?
∴ 


= 5 × 11
= 55
∴ The simplest form of
= 55
Thus, the "simplest form of
" is equal to 55.
7x + 9y = - 27_________eq1
3x - y = 3__________eq2
Multiply eq 2 by 9 and then add the resulting eq with eq1.
eq2 x 9 gives us 27x - 9y = 27___________eq3
add eq3 with eq1 we get.
34x = 0.
where x=0/34
x=0.
substitute x into any of the above equations to get y.
substitute x into eq1. we get:
7(0) + 9y =-27
9y = -27
y= -27/9
y = -3.
6,135.9 is the correct answer