1. x=6z+13/5
2. y= -2z-16/3
3. z= 6x/7+y/7+9/7
Explanations
1 Add 4x to both sides
5x=6z+13
Divide 5 by both sides
x=6z+13/5
2 Add 4z to both sides
-6y=32+4z
Divide 6 by both sides
-6y/-6 = 32/-6 + 4z/-6
Simplify
y=-2(z+8)/3 of y= -2z-16/3
3. Subtract 6x+y from both sides
-7z=-9-6x-y
Divide 7 by both sides
-7z/-7 = -9/-7 - 6x/-7 -y/-7
Simplify
z=6x/7+y/7+9/7
All the choices are correct.
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In our base-10 number system, moving a digit one place to the left multiplies its value by 10. Moving it one place to the right multiplies its value by 1/10.
You know already that 1,000 has 10 times the value of 100, and 1/10 the value of 10,000.
1. 7x+3
2. 8x+19
3. 13x-12
4. 3x-38
5. 6x-1
Answer: angle DBE & angle ABD and angle EBF & angle FBC
Step-by-step explanation:
complimentary angles add up to 90 degrees, so just find the pairs of angles that add up to 90 degrees.
