Answer:
-5 * (4x + 2) + 2x + 1 = -151
-20x - 10 + 2x + 1 = -151
-18x - 9 = -151
-18x = -142
x = 71/9 = 7 8/9
x=140/-18
x=-7+7/9
Step-by-step explanation:
-5(4x-2)+2x+1=151
We move all terms to the left:
-5(4x-2)+2x+1-(151)=0
<em>We add all the numbers together, and all the variables</em>
2x-5(4x-2)-150=0
<em>We multiply parentheses</em>
2x-20x+10-150=0
-18x-140=0
<em>We move all terms containing x to the left, all other terms to the right</em>
-18x=140
25
4, 8, 6
4 is cost, 6 is acid rain, 8 is, recycling
no mode , 6 , 6.24
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