17b/12a and put a minus sign between both equations
60q+j=52
125q+j=65
multiply first equation by -1 and add to 2nd
-60q-j=-52
<u>125q+j=65 +</u>
65q+0j=13
65q=13
divde both sides by 65
q=0.2oz
sub back
when
60q+j=52
60(0.2)+j=52
12+j=52
minus 12 both sides
j=40
the jar is 40 ounces
Answer:
Step-by-step explanation:
Let's solve your equation step-by-step.
9a−2=−26
Step 1: Add 2 to both sides.
9a−2+2=−26+2
9a=−24
Step 2: Divide both sides by 9.
9a
9
=
−24
9
a=
−8
3
Answer:
a=
−8
3
2
3
x−4=10
Step 1: Add 4 to both sides.
2
3
x−4+4=10+4
2
3
x=14
Step 2: Multiply both sides by 3/2.
(
3
2
)*(
2
3
x)=(
3
2
)*(14)
x=21
Answer:
x=21
-1-4x+7x=1x+4x
-1-4x+7x=1x+4x
-1+-4x+7x=x+4x
(-4x+7x)+(-1)=(x+4x)
3x+-1=5x
3x-1=5x
3x-1-5x=5x-5x
-2x-1=0
-2x-1+1=0+1
-2x=1
-2x/-2=1/2
x=-1/2