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lalanduni
22.04.2021 •
Mathematics
Which expression is NOT equivalent to 1.24x0.9?
A. (124 x 90) x (1/100 x 1/100)
B. (124 x 9) x (1/100 x 1/10)
C. (0.124 x 9) x (10 x 1/10)
D. (124 x 9) x (1/10 x 1/10)
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Ответ:
This equation is invalid.
Step-by-step explanation:
3(4x-1)=6(2x-5)
We simplify the equation to the form, which is simple to understand
3(4x-1)=6(2x-5)
Reorder the terms in parentheses
+(+12x-3)=6*(2x-5)
Remove unnecessary parentheses
+12x-3=+6+*(+2x-5+)
Reorder the terms in parentheses
+12x-3=+(+12x-30)
Remove unnecessary parentheses
+12x-3=+12x-30
We move all terms containing x to the left and all other terms to the right.
+12x-12x=-30+3
We simplify left and right side of the equation.
0x=-27
0=-27
The left and right sides are not equal, therefore there is no solution. This equation is invalid.