Let's solve your equation step-by-step.
−9x+4=10x−15
Step 1: Subtract 10x from both sides.
−9x+4−10x=10x−15−10x
−19x+4=−15
Step 2: Subtract 4 from both sides.
−19x+4−4=−15−4
−19x=−19
Step 3: Divide both sides by -19.
−19x−19=−19−19
x=1 that's the answer
