3x+2(5x-3)=7
3x+10x-6=7
13x-6=7
13x=13
x=1
22x3=66 then plug it into the problem
66÷11=6
so your answer is 6
Given that: step 1

step 2: subtract 3x both side

Step 3: Add 18 both side:

Step 4: divide both side by 5

Step:6 The value of x is:
x=6
(3, -2) satisfies both equations. 3-2=1, and -3-2=-5.