Question

can someone help me with this please !
Equation 1: x + 2y = 10
Equation 2: 2x + 5y = 15


Step 1: −2(x + 2y) = −2(10)
2x + 5y = 15

Step 2: −2x − 4y = −10
2x + 5y = 15

Step 3: 1y = 5

Step 4: x + 2(1) = 10

Step 5: x = 8


In which step did the student first make an error?
Step 1
Step 2
Step 3
Step 4

Answer 1

can you help me @SyedMohammed98 please

Answer 2

help please! @Smita12

Answer 3

what do you think?

Answer 4

i dont know

Answer 5

i think it may be step 2

Answer 6

you're correct! good job!

Answer 7

oh okay thanks!

Answer 8

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Answer 9

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Answer 10

click on best response