This is the following way to solve this problem:
3x-10(x+2)=13-7x
3x-10x-20=13-7x (multiply 10 times what's in the parentheses)
-7x-20=13-7x ( subtract 3x from -10x)
-7x-20-13=-7x ( since the 13 is positive, when we move it to the other
side, we change it's sign, so now we subtract 13 from 20
-7x-7=-7x
-7=-7x+7x ( we do the same thing we did above, now with the -7x)
-7=x
x=-7
Answer: x = -7
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: )
Answer: a>-13
Step-by-step explanation:
Step 1: Add up all the numbers: 12 + 12 + 11 + 10 + 9 + 4 = 58
Step 2: Divide by how many there are. There are 6 numbers so, 58 <span>÷ 6 = 9.6</span>
<span /><span>Answer: 9.6
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Is there a picture or something because how many tiles does he wanna make