He has 28 blue marbles 15+12-55=28
Answer:
-7
Step-by-step explanation:
you beed to subtrace 7 from both sides
Answer:
3^5
Step-by-step explanation:
<em>exponents:</em>
1 - ( - 4 ) = 5
Therefore,
3^5
Answer:
x = 8
Step-by-step explanation:
-4x + 6(6 - 2x) = -7x - 36
-4x + 36 - 12x = -7x - 36
-16x + 36 = -7x - 36
<u> +36 +36</u>
-16x + 72 = -7x
<u>+16x +16x</u>
72 = 9x
divide by 9
<u><em>x = 8</em></u>
