2 years ago

18 = 3 + 5x for x. A. 1 B. 2 C. 3 D. 4

Mathematics

2 answers:

Lostsunrise [7]2 years ago

8 0

Answer:

Step-by-step explanation:

Ket [755]2 years ago

7 0

Answer:

C. 3

Step-by-step explanation:

subtract 3 from both sides

15 = 5x

Divide by 5 on both sides

3 = x

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Label the equations in number 5-7 as True or False:

kkurt [141]

Answer:

${ \rm{ {(7}^{1}) ^{9 } = 7 {}^{5} \times {7}^{5} : \: { \tt{ \red{false}}} }} \\{ \boxed{ \mathfrak{correction \dashrightarrow \: ( {7}^{1}) {}^{9} = {7}^{9} }}} \\ \\ { \rm{ \frac{ {y}^{13} }{ {( {y}^{2}) }^{6} } = {y}^{ - 10} \times {y}^{9} : \:{ \tt { \red{false}}}}} \\ { \boxed{ \mathfrak{correction \: \dashrightarrow \: { \rm{{y}^{1} }}}}} \\ \\ { \rm{ {b}^{4} \times {b}^{ - 6} = \frac{ {b}^{1} \times {b}^{3} }{ {b}^{6} } }} \: : \: { \tt{ \green{true}}}$