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bazaltina [42]
3 years ago
9

for what value of the variable is the value of the expression -3(2x+1) is 20 greater than the expression 8x+5

Mathematics
1 answer:
stiv31 [10]3 years ago
6 0

Answer:

- 3 ( 2x+1 ) 20

8x+5

_____________

8x+5×20 -3 ( 2×12.5+1 )

8×=100 -3 ( 25+1 )

100÷8= 12.5 -3 ( 26 )

×= 12.5

-3 ( 26 )

-3×2 + -3×6 = -6+ -18 = -24

-24

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