Answer:
6
Step-by-step explanation:
8x+42=15x
subract 8x on both sides
42=7x
divide by 7 on both sides
x=6
plz mark brainliest
1.4 because if you do your math it gives you a sum of 1.4
<h2>
Sally's grocery bill 
</h2>
Step-by-step explanation:
Given that
Sally has a discount card that reduce the price of grocery bill in certain grocery store by 5%. It c represent the cost of Sally's groceries.
She got discount =
<h3>Therefore Sally's grocery bill =

</h3>
Michael Inhales the chlorine and layer dies. Therefore he doesn’t need an equation anymore.
X + y = -2
-x -x
y= -2 -x
2x -3y = -9
2x -3(-2 -x) = -9
2x +6 +3x = -9
-6 -6
5x = -15
5x/5 = -15/5
x= -3
y= -2 -x
y= -2 -(-3)
y= -2 +3
y= 1
the answer: (-3,1)