<em>If x=-6 and y=2, evaluate 2(y-3xy)</em>
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First, We need to simplify the expression by multiplying the parentheses by 2:-
Now , Replace y with 2 and x with -6:-
Simplifying,
Further simplifying,
Adding,
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Answer:
x ≈ - 1.83
Step-by-step explanation:
to solve for x in the question 1.1x + 1.2x - 5.4 = -10
we have
2.3x - 5.4 = -10
collect the like terms
2.3x = -10 + 5.4
2.3x = -4.2
divide both sides by the coefficient of x
2.3x/2.3 = -4.2/2.3
x = -1.826
x ≈ - 1.83
This is what the test said so option D
For this problem you have to isolate the variable. To do this you must inverse the operations. Multiply 18 by 5, then divide by 12 to get your answer of 7.5
