Q:

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Accepted Solution

A:
Answer: 1. x= -56.25Expand 19.5-6.5x+36=201-4.5x-33Simplify -6.5x+55.5=201-4.5x-33Simplify again 6.5x+55.5=-4.5x+168Add 6.5 to both sides55.5=-4.5x+168+6.5xSimplify 55.5=2x+168Subtract 55.5-168=2xSimplify 112.5=2xDivide both sides by 2−112.5÷2 = xSimplfy x = -56.252. x > -7 ÷ 4OrDecimal Form: -1.75Remove parentheses 12x>4x+5−19Simplify 12x>4x-14Subtract 12x-4x>-14Simplify 8x>-14Divide both sides by 8x > -14 ÷ 8Simplify x > -7 ÷ 4OrDecimal Form: -1.753. Answer: Step 2 has an errorStep-by-step explanation:Given equation,2(10 - 13x) = -34x + 60By distributive property,20 - 26x = -34x + 60Now, we need to isolate x on the left side of the equation,For this we need to eliminate constant term from the left side,20 will be eliminated by subtracting 20 from both sides ( subtraction property of equality )I.e. Step 2 has an error,We need to use subtraction property of equality instead of using addition property of Equality,Note : The correct steps would be,Step 2 : 20 - 26x = -34x + 60 ( Subtraction property of equality )Step 3 : 8x = 40  ( addition property of Equality )Step 4 :  x = 5  (  Division Property of Equality )Hope this helps!!! Good luck!!! ;)