if only i knew I would love to help you sorry
Answer:
1)-9
2)16
3)-2
Step-by-step explanation:
1)
-3x + 4 = 31
-3x = 31 - 4
-3x = 27
-x = 27/3
-x = 9
x = -9
2)
2x + -10 = 22
2x = 22 + 10
2x = 32
x = 32/2
x = 16
3)
40 = 32 – 4r
-4r = 40 - 32
-4r = 8
-r = 8/4
-r = 2
r = -2
Answer:
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Step-by-step explanation:
If
inch is equal to 3 feet, then 1 inch = 6 feet because
and 3 * 2 = 6.
Thus 1 x 7 = 7, and 6 x 7 = 42.
42 feet.
3x + 6 = 2x + 4
bring the 2x over the " equals" sign anything you do this to always changes "signs"
-2x ( negative because it was positive before ) so now it's
-2x +3x +6 = 4
bring the 6 over
-2x + 3x = -6 + 4
then just work it out from here
answer would be
x (or 1x) = -2
