4 years ago

7 - 3 ( 5t - 10 ) = 67

2 answers:

6 0

$7-3(5t-10)=67$

$7-(3*5t-3*10)=67$

$7-15t-(-30)=67$

$7-15t+30=67$

$-15t=67-30-7$

$-15t=30$

then...

$t=-\frac{30}{15}$

$\boxed{\boxed{t=-2}}$

anyanavicka [17]4 years ago

6 0

Answer in an annex
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