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deff fn [24]
3 years ago
14

Solve for X: 5X +2 = 4X -9

Mathematics
2 answers:
RUDIKE [14]3 years ago
4 0

Answer:5X+2=4X-9\quad :\quad X=-11

Step-by-step explanation:

5X+2=4X-9

5X+2-2=4X-9-2

5X=4X-11

5X-4X=4X-11-4X

X=-11

a_sh-v [17]3 years ago
4 0

Answer:

\boxed{ \bold{ \huge{ \boxed{ \sf{ \:  \: X \:  =  - 11}}}}}

Step-by-step explanation:

\sf{5 \: X + 2 = 4 \: X - 9}

Move 4 X to left hand side and change it's sign

Similarly, move 2 to right hand side and change it's sign

\longrightarrow{ \sf{5 \: X - 4 \: X =  - 9 - 2}}

Collect like terms

\longrightarrow{ \sf{X =  - 9 - 2}}

The negative and positive integers are always subtracted but posses the sign of the bigger integer

\longrightarrow{ \sf{X =  - 11}}

Hope I helped!

Best regards! :D

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