Answer:
x = 4
Step-by-step explanation:
According to the number line, x + 7 is the equivalent to 9 + 2x - 6
1. 9 + 2x - 6 = x + 7
2. x = 4
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Answer:
1.625
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
yw
Answer:
3x−4y=9 −3x+2y=9
Add these equations to eliminate x: −2y=18
Then solve−2y=18
for y: −2y=18 −2y −2 = 18 −2 (Divide both sides by -2)
y=−9
Now that we've found y let's plug it back in to solve for x.
Write down an original equation: 3x−4y=9
Substitute−9for y in 3x−4y=9: 3x−(4)(−9)=9
3x+36=9(Simplify both sides of the equation)
3x+36+−36=9+−36(Add -36 to both sides)
3x=−27 3x 3 = −27 3 (Divide both sides by 3) x=−9
Answer: x=−9 and y=−9
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