Question

Equation 1: m = 8 + 2n

Equation 2: 4m = 4 + 4n

Step 1: −4(m) = −4(8 + 2n)
4m = 4 + 4n
Step 2: −4m = −32 − 8n
4m = 4 + 4n
Step 3: −4m + 4m = −32 − 8n + 4n
Step 4: 0 = −32 − 4n
Step 5: n = − 8

Answer 1

1:×4

m×4=(8+2n)×4

4m=32+8n

now,

1:×4 - 2:

4m-4m = 32+8n -4+4n

0=(32-4) +(8n-4n)

0=28+4n

28=-4n

n= -7

n=-7. 1:,

m=8+2n

m=8+2×(-7)

m=8-14

m=-6